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31057094 = 2432391511
BaseRepresentation
bin111011001111…
…0010011000110
32011102212022202
41312132103012
530422311334
63025354502
7524660315
oct166362306
964385282
1031057094
1116592722
12a498a32
1365851a3
1441a627c
152ad717e
hex1d9e4c6

31057094 has 16 divisors (see below), whose sum is σ = 47900160. Its totient is φ = 15093960.

The previous prime is 31057073. The next prime is 31057111. The reversal of 31057094 is 49075013.

It is a super-3 number, since 3×310570943 (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19799 + ... + 21309.

It is an arithmetic number, because the mean of its divisors is an integer number (2993760).

Almost surely, 231057094 is an apocalyptic number.

31057094 is a deficient number, since it is larger than the sum of its proper divisors (16843066).

31057094 is a wasteful number, since it uses less digits than its factorization.

31057094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 31057094 is about 5572.8891968170. The cubic root of 31057094 is about 314.3308007139.

The spelling of 31057094 in words is "thirty-one million, fifty-seven thousand, ninety-four".

Divisors: 1 2 43 86 239 478 1511 3022 10277 20554 64973 129946 361129 722258 15528547 31057094