Search a number
-
+
13120001300 = 22527149125791
BaseRepresentation
bin11000011100000001…
…10101010100010100
31020212100121010022002
430032000311110110
5203332210020200
610005515054432
7643061112440
oct141600652424
936770533262
1013120001300
11562299818a
122661a41418
1313111c93a3
148c6685820
1551bc57bd5
hex30e035514

13120001300 has 72 divisors (see below), whose sum is σ = 32756236800. Its totient is φ = 4468060800.

The previous prime is 13120001299. The next prime is 13120001309. The reversal of 13120001300 is 310002131.

It is a super-2 number, since 2×131200013002 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120001309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41405 + ... + 167195.

Almost surely, 213120001300 is an apocalyptic number.

13120001300 is a gapful number since it is divisible by the number (10) 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 13120001300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16378118400).

13120001300 is an abundant number, since it is smaller than the sum of its proper divisors (19636235500).

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

13120001300 is a wasteful number, since it uses less digits than its factorization.

13120001300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125961 (or 125954 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 13120001300 its reverse (310002131), we get a palindrome (13430003431).

The spelling of 13120001300 in words is "thirteen billion, one hundred twenty million, one thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 149 175 298 350 596 700 745 1043 1490 2086 2980 3725 4172 5215 7450 10430 14900 20860 26075 52150 104300 125791 251582 503164 628955 880537 1257910 1761074 2515820 3144775 3522148 4402685 6289550 8805370 12579100 17610740 18742859 22013425 37485718 44026850 74971436 88053700 93714295 131200013 187428590 262400026 374857180 468571475 524800052 656000065 937142950 1312000130 1874285900 2624000260 3280000325 6560000650 13120001300