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313211031102 = 23217400612839
BaseRepresentation
bin1001000111011001101…
…01010000111000111110
31002221110012210221110100
410203230311100320332
520112424010443402
6355515343221530
731425442560114
oct4435465207076
91087405727410
10313211031102
11110917509522
12508518a78a6
13236c6b4a888
1411233921ab4
1582323e871c
hex48ecd50e3e

313211031102 has 12 divisors (see below), whose sum is σ = 678623900760. Its totient is φ = 104403677028.

The previous prime is 313211031097. The next prime is 313211031113. The reversal of 313211031102 is 201130112313.

313211031102 is a `hidden beast` number, since 31 + 321 + 1 + 0 + 311 + 0 + 2 = 666.

It is a super-2 number, since 2×3132110311022 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 17400612839 = 313211031102 / (3 + 1 + 3 + 2 + 1 + 1 + 0 + 3 + 1 + 1 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8700306402 + ... + 8700306437.

It is an arithmetic number, because the mean of its divisors is an integer number (56551991730).

Almost surely, 2313211031102 is an apocalyptic number.

313211031102 is an abundant number, since it is smaller than the sum of its proper divisors (365412869658).

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

313211031102 is a wasteful number, since it uses less digits than its factorization.

313211031102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17400612847 (or 17400612844 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 313211031102 its reverse (201130112313), we get a palindrome (514341143415).

The spelling of 313211031102 in words is "three hundred thirteen billion, two hundred eleven million, thirty-one thousand, one hundred two".

Divisors: 1 2 3 6 9 18 17400612839 34801225678 52201838517 104403677034 156605515551 313211031102