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31134013012 = 2211296894157
BaseRepresentation
bin11100111111101110…
…110101011001010100
32222100210010201210001
4130333232311121110
51002230301404022
622145221541044
72151346513144
oct347756653124
988323121701
1031134013012
111222737a873
12604a874784
132c222c450b
141714cbc924
15c2347cb27
hex73fbb5654

31134013012 has 12 divisors (see below), whose sum is σ = 54532789780. Its totient is φ = 15553215936.

The previous prime is 31134013003. The next prime is 31134013033. The reversal of 31134013012 is 21031043113.

It can be written as a sum of positive squares in 2 ways, for example, as 10925684676 + 20208328336 = 104526^2 + 142156^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3442563 + ... + 3451594.

Almost surely, 231134013012 is an apocalyptic number.

It is an amenable number.

31134013012 is a deficient number, since it is larger than the sum of its proper divisors (23398776768).

31134013012 is a wasteful number, since it uses less digits than its factorization.

31134013012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6895290 (or 6895288 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31134013012 its reverse (21031043113), we get a palindrome (52165056125).

The spelling of 31134013012 in words is "thirty-one billion, one hundred thirty-four million, thirteen thousand, twelve".

Divisors: 1 2 4 1129 2258 4516 6894157 13788314 27576628 7783503253 15567006506 31134013012