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31840340468196 = 2231323341409153
BaseRepresentation
bin1110011110101011010000…
…01011101110000111100100
311011201220111001222001000110
413033111220023232013210
513133133004124440241
6151415130034213020
76464250214305561
oct717255013560744
9134656431861013
1031840340468196
11a16645a133557
1236a2a55724170
13149c6ba133480
147c111b631868
153a339116d816
hex1cf5682ee1e4

31840340468196 has 192 divisors, whose sum is σ = 85685881720320. Its totient is φ = 9142485073920.

The previous prime is 31840340468179. The next prime is 31840340468213. The reversal of 31840340468196 is 69186404304813.

It is an interprime number because it is at equal distance from previous prime (31840340468179) and next prime (31840340468213).

It is a super-2 number, since 2×318403404681962 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 77615556 + ... + 78024708.

It is an arithmetic number, because the mean of its divisors is an integer number (446280633960).

Almost surely, 231840340468196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31840340468196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42842940860160).

31840340468196 is an abundant number, since it is smaller than the sum of its proper divisors (53845541252124).

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

31840340468196 is a wasteful number, since it uses less digits than its factorization.

31840340468196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409283 (or 409235 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 57.

The spelling of 31840340468196 in words is "thirty-one trillion, eight hundred forty billion, three hundred forty million, four hundred sixty-eight thousand, one hundred ninety-six".