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31057068 = 22373311117
BaseRepresentation
bin111011001111…
…0010010101100
32011102212021210
41312132102230
530422311233
63025354420
7524660250
oct166362254
964385253
1031057068
11165926a9
12a498a10
136585183
1441a6260
152ad7163
hex1d9e4ac

31057068 has 48 divisors (see below), whose sum is σ = 83143424. Its totient is φ = 8838720.

The previous prime is 31057067. The next prime is 31057073. The reversal of 31057068 is 86075013.

It is not an unprimeable number, because it can be changed into a prime (31057067) 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, 27246 + ... + 28362.

Almost surely, 231057068 is an apocalyptic number.

It is an amenable number.

31057068 is an abundant number, since it is smaller than the sum of its proper divisors (52086356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31057068 is a wasteful number, since it uses less digits than its factorization.

31057068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462 (or 1460 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 31057068 is about 5572.8868640948. The cubic root of 31057068 is about 314.3307129980.

The spelling of 31057068 in words is "thirty-one million, fifty-seven thousand, sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 331 662 993 1117 1324 1986 2234 2317 3351 3972 4468 4634 6702 6951 7819 9268 13404 13902 15638 23457 27804 31276 46914 93828 369727 739454 1109181 1478908 2218362 2588089 4436724 5176178 7764267 10352356 15528534 31057068