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31229679283 = 1122511028273
BaseRepresentation
bin11101000101011011…
…110001011010110011
32222121110011002020021
4131011123301122303
51002424244214113
622202520224311
72153620615435
oct350533613263
988543132207
1031229679283
1112276381300
12607690b097
132c3907b58a
1417238a2655
15c2ba7848d
hex7456f16b3

31229679283 has 12 divisors (see below), whose sum is σ = 34463631384. Its totient is φ = 28277480000.

The previous prime is 31229679277. The next prime is 31229679301. The reversal of 31229679283 is 38297692213.

It is not a de Polignac number, because 31229679283 - 229 = 30692808371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31229679283.

It is not an unprimeable number, because it can be changed into a prime (31229679203) 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, 483766 + ... + 544507.

It is an arithmetic number, because the mean of its divisors is an integer number (2871969282).

Almost surely, 231229679283 is an apocalyptic number.

31229679283 is a deficient number, since it is larger than the sum of its proper divisors (3233952101).

31229679283 is a wasteful number, since it uses less digits than its factorization.

31229679283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028546 (or 1028535 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 52.

The spelling of 31229679283 in words is "thirty-one billion, two hundred twenty-nine million, six hundred seventy-nine thousand, two hundred eighty-three".

Divisors: 1 11 121 251 2761 30371 1028273 11311003 124421033 258096523 2839061753 31229679283