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30331312300002 = 23743137349351259
BaseRepresentation
bin1101110010110000011110…
…00110000101111111100010
310222101122102022020102210010
412321120033012011333202
512433422011422100002
6144302002411345350
76250236123440130
oct671301706057742
9128348368212703
1030331312300002
11973448a06a83a
12349a4b3152256
1313c02cc48660c
1476c086d3a750
15378ec13d146c
hex1b960f185fe2

30331312300002 has 128 divisors (see below), whose sum is σ = 71663784192000. Its totient is φ = 8378666666496.

The previous prime is 30331312299983. The next prime is 30331312300007. The reversal of 30331312300002 is 20000321313303.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (30331312300007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 86174649 + ... + 86525907.

It is an arithmetic number, because the mean of its divisors is an integer number (559873314000).

Almost surely, 230331312300002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30331312300002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35831892096000).

30331312300002 is an abundant number, since it is smaller than the sum of its proper divisors (41332471891998).

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

30331312300002 is a wasteful number, since it uses less digits than its factorization.

30331312300002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351800.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 30331312300002 its reverse (20000321313303), we get a palindrome (50331633613305).

The spelling of 30331312300002 in words is "thirty trillion, three hundred thirty-one billion, three hundred twelve million, three hundred thousand, two".

Divisors: 1 2 3 6 7 14 21 42 43 86 129 137 258 274 301 349 411 602 698 822 903 959 1047 1806 1918 2094 2443 2877 4886 5754 5891 7329 11782 14658 15007 17673 30014 35346 41237 45021 47813 82474 90042 95626 105049 123711 143439 210098 247422 286878 315147 334691 351259 630294 669382 702518 1004073 1053777 2008146 2055959 2107554 2458813 4111918 4917626 6167877 7376439 12335754 14391713 14752878 15104137 28783426 30208274 43175139 45312411 48122483 86350278 90624822 96244966 105728959 122589391 144367449 211457918 245178782 288734898 317186877 336857381 367768173 634373754 673714762 735536346 858125737 1010572143 1716251474 2021144286 2069266769 2574377211 4138533538 5148754422 5271343813 6207800307 10542687626 12415600614 14484867383 15814031439 16794746567 28969734766 31628062878 33589493134 36899406691 43454602149 50384239701 73798813382 86909204298 100768479402 110698220073 117563225969 221396440146 235126451938 352689677907 705379355814 722174102381 1444348204762 2166522307143 4333044614286 5055218716667 10110437433334 15165656150001 30331312300002