Search a number
-
+
2013031211312 = 2411237118013889
BaseRepresentation
bin11101010010110010000…
…000101010000100110000
321010102222121100222022002
4131102302000222010300
5230440141442230222
64140435045033132
7265302534654542
oct35226200520460
97112877328262
102013031211312
117067a3703810
122861800b57a8
13117a9c2434b4
146d607421692
153756c047392
hex1d4b202a130

2013031211312 has 160 divisors (see below), whose sum is σ = 4505998740480. Its totient is φ = 862202880000.

The previous prime is 2013031211311. The next prime is 2013031211333. The reversal of 2013031211312 is 2131121303102.

It is a happy number.

It is a super-2 number, since 2×20130312113122 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2013031211311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 517619864 + ... + 517623752.

It is an arithmetic number, because the mean of its divisors is an integer number (28162492128).

Almost surely, 22013031211312 is an apocalyptic number.

2013031211312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2013031211312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2252999370240).

2013031211312 is an abundant number, since it is smaller than the sum of its proper divisors (2492967529168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2013031211312 is a wasteful number, since it uses less digits than its factorization.

2013031211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5803 (or 5797 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2013031211312 its reverse (2131121303102), we get a palindrome (4144152514414).

The spelling of 2013031211312 in words is "two trillion, thirteen billion, thirty-one million, two hundred eleven thousand, three hundred twelve".

Divisors: 1 2 4 8 11 16 22 23 44 46 71 88 92 142 176 184 253 284 368 506 568 781 1012 1136 1562 1633 1801 2024 3124 3266 3602 3889 4048 6248 6532 7204 7778 12496 13064 14408 15556 17963 19811 26128 28816 31112 35926 39622 41423 42779 62224 71852 79244 82846 85558 89447 127871 143704 158488 165692 171116 178894 255742 276119 287408 316976 331384 342232 357788 455653 511484 552238 662768 684464 715576 911306 983917 1022968 1104476 1406581 1431152 1822612 1967834 2045936 2208952 2813162 2941033 3037309 3645224 3935668 4417904 5626324 5882066 6074618 6350737 7004089 7290448 7871336 11252648 11764132 12149236 12701474 14008178 15742672 22505296 23528264 24298472 25402948 28016356 32351363 47056528 48596944 50805896 56032712 64702726 69858107 77044979 101611792 112065424 129405452 139716214 154089958 161094047 258810904 279432428 308179916 322188094 497290319 517621808 558864856 616359832 644376188 994580638 1117729712 1232719664 1288752376 1772034517 1989161276 2577504752 3544069034 3978322552 5470193509 7088138068 7956645104 10940387018 11437677337 14176276136 21880774036 22875354674 28352552272 43761548072 45750709348 87523096144 91501418696 125814450707 183002837392 251628901414 503257802828 1006515605656 2013031211312