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31368255958 = 2132531751047
BaseRepresentation
bin11101001101101100…
…011001100111010110
32222222002220111200201
4131031230121213112
51003220233142313
622224350331114
72160222530164
oct351554314726
988862814621
1031368255958
1112337620a86
1260b51b9a9a
132c5b9aab00
141738056234
15c38ced0dd
hex74db199d6

31368255958 has 24 divisors (see below), whose sum is σ = 51911569008. Its totient is φ = 14204485152.

The previous prime is 31368255953. The next prime is 31368255977. The reversal of 31368255958 is 85955286313.

It is a junction number, because it is equal to n+sod(n) for n = 31368255899 and 31368255908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31368255953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 857610 + ... + 893437.

It is an arithmetic number, because the mean of its divisors is an integer number (2162982042).

Almost surely, 231368255958 is an apocalyptic number.

31368255958 is a deficient number, since it is larger than the sum of its proper divisors (20543313050).

31368255958 is a wasteful number, since it uses less digits than its factorization.

31368255958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751128 (or 1751115 counting only the distinct ones).

The product of its digits is 7776000, while the sum is 55.

The spelling of 31368255958 in words is "thirty-one billion, three hundred sixty-eight million, two hundred fifty-five thousand, nine hundred fifty-eight".

Divisors: 1 2 13 26 53 106 169 338 689 1378 8957 17914 1751047 3502094 22763611 45527222 92805491 185610982 295926943 591853886 1206471383 2412942766 15684127979 31368255958