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3057257 = 72431451
BaseRepresentation
bin1011101010011001101001
312202022202202
423222121221
51240313012
6145305545
734662200
oct13523151
95668682
103057257
1117a8a65
1210352b5
13830738
14598237
15405cc2
hex2ea669

3057257 has 12 divisors (see below), whose sum is σ = 3641616. Its totient is φ = 2557800.

The previous prime is 3057253. The next prime is 3057281. The reversal of 3057257 is 7527503.

It is not a de Polignac number, because 3057257 - 22 = 3057253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3057253) 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, 1382 + ... + 2832.

It is an arithmetic number, because the mean of its divisors is an integer number (303468).

Almost surely, 23057257 is an apocalyptic number.

It is an amenable number.

3057257 is a deficient number, since it is larger than the sum of its proper divisors (584359).

3057257 is a wasteful number, since it uses less digits than its factorization.

3057257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508 (or 1501 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 29.

The square root of 3057257 is about 1748.5013583066. The cubic root of 3057257 is about 145.1367239920.

The spelling of 3057257 in words is "three million, fifty-seven thousand, two hundred fifty-seven".

Divisors: 1 7 43 49 301 1451 2107 10157 62393 71099 436751 3057257