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31314004232 = 2371869129917
BaseRepresentation
bin11101001010011101…
…011100100100001000
32222211022211020022112
4131022131130210020
51003112341113412
622215131441452
72155663433660
oct351235344410
988738736275
1031314004232
1112309a36945
12609abb6288
132c506943b4
141730b731a0
15c34183722
hex74a75c908

31314004232 has 32 divisors (see below), whose sum is σ = 67107270720. Its totient is φ = 13419120960.

The previous prime is 31314004231. The next prime is 31314004237. The reversal of 31314004232 is 23240041313.

It is a super-2 number, since 2×313140042322 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31314004198 and 31314004207.

It is not an unprimeable number, because it can be changed into a prime (31314004231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1031738 + ... + 1061654.

It is an arithmetic number, because the mean of its divisors is an integer number (2097102210).

Almost surely, 231314004232 is an apocalyptic number.

It is an amenable number.

31314004232 is an abundant number, since it is smaller than the sum of its proper divisors (35793266488).

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

31314004232 is a wasteful number, since it uses less digits than its factorization.

31314004232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48621 (or 48617 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31314004232 its reverse (23240041313), we get a palindrome (54554045545).

The spelling of 31314004232 in words is "thirty-one billion, three hundred fourteen million, four thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 56 18691 29917 37382 59834 74764 119668 130837 149528 209419 239336 261674 418838 523348 837676 1046696 1675352 559178647 1118357294 2236714588 3914250529 4473429176 7828501058 15657002116 31314004232