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31068043747 = 1329317594637
BaseRepresentation
bin11100111011110011…
…001011100111100011
32222012012000010221221
4130323303023213203
51002111404344442
622134503555511
72146616005006
oct347363134743
988165003857
1031068043747
11121a3112114
12603075bb97
132c11737550
14170a22953d
15c1c79b467
hex73bccb9e3

31068043747 has 16 divisors (see below), whose sum is σ = 33598414080. Its totient is φ = 28557908352.

The previous prime is 31068043739. The next prime is 31068043757. The reversal of 31068043747 is 74734086013.

It is not a de Polignac number, because 31068043747 - 23 = 31068043739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31068043717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6697713 + ... + 6702349.

It is an arithmetic number, because the mean of its divisors is an integer number (2099900880).

Almost surely, 231068043747 is an apocalyptic number.

31068043747 is a deficient number, since it is larger than the sum of its proper divisors (2530370333).

31068043747 is a wasteful number, since it uses less digits than its factorization.

31068043747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6702.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 31068043747 in words is "thirty-one billion, sixty-eight million, forty-three thousand, seven hundred forty-seven".

Divisors: 1 13 293 1759 3809 4637 22867 60281 515387 1358641 6700031 8156483 17662333 106034279 2389849519 31068043747