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31294107 = 3413113263
BaseRepresentation
bin111011101100…
…0001010011011
32011212220110000
41313120022123
531002402412
63034424043
7526665315
oct167301233
964786400
1031294107
11167347a9
12a592023
136639030
1442287b5
152b324dc
hex1dd829b

31294107 has 40 divisors (see below), whose sum is σ = 50982624. Its totient is φ = 19014912.

The previous prime is 31294079. The next prime is 31294117. The reversal of 31294107 is 70149213.

It is not a de Polignac number, because 31294107 - 27 = 31293979 is a prime.

It is a super-2 number, since 2×312941072 = 1958642265854898, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (31294117) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 118858 + ... + 119120.

Almost surely, 231294107 is an apocalyptic number.

31294107 is a deficient number, since it is larger than the sum of its proper divisors (19688517).

31294107 is a wasteful number, since it uses less digits than its factorization.

31294107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 31294107 is about 5594.1136027078. The cubic root of 31294107 is about 315.1283830426.

The spelling of 31294107 in words is "thirty-one million, two hundred ninety-four thousand, one hundred seven".

Divisors: 1 3 9 13 27 39 81 113 117 263 339 351 789 1017 1053 1469 2367 3051 3419 4407 7101 9153 10257 13221 21303 29719 30771 39663 89157 92313 118989 267471 276939 386347 802413 1159041 2407239 3477123 10431369 31294107