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316161105312 = 253131311933849
BaseRepresentation
bin1001001100111001010…
…10111001110110100000
31010020001210220020111010
410212130222321312200
520134444220332222
6401124205420520
731561524024423
oct4463452716640
91106053806433
10316161105312
111120a0779988
125133586a740
1323a770a1710
141143364d9ba
1583563c980c
hex499cab9da0

316161105312 has 96 divisors (see below), whose sum is σ = 900586209600. Its totient is φ = 96537692160.

The previous prime is 316161105301. The next prime is 316161105341. The reversal of 316161105312 is 213501161613.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 316161105312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 803437 + ... + 1130412.

It is an arithmetic number, because the mean of its divisors is an integer number (9381106350).

Almost surely, 2316161105312 is an apocalyptic number.

316161105312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

316161105312 is an abundant number, since it is smaller than the sum of its proper divisors (584425104288).

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

316161105312 is a wasteful number, since it uses less digits than its factorization.

316161105312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934006 (or 1933998 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

Adding to 316161105312 its reverse (213501161613), we get a palindrome (529662266925).

The spelling of 316161105312 in words is "three hundred sixteen billion, one hundred sixty-one million, one hundred five thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 96 104 131 156 208 262 312 393 416 524 624 786 1048 1248 1572 1703 2096 3144 3406 4192 5109 6288 6812 10218 12576 13624 20436 27248 40872 54496 81744 163488 1933849 3867698 5801547 7735396 11603094 15470792 23206188 25140037 30941584 46412376 50280074 61883168 75420111 92824752 100560148 150840222 185649504 201120296 253334219 301680444 402240592 506668438 603360888 760002657 804481184 1013336876 1206721776 1520005314 2026673752 2413443552 3040010628 3293344847 4053347504 6080021256 6586689694 8106695008 9880034541 12160042512 13173379388 19760069082 24320085024 26346758776 39520138164 52693517552 79040276328 105387035104 158080552656 316161105312