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57940725 = 3521375639
BaseRepresentation
bin1101110100000…
…1101011110101
311001000200201210
43131001223311
5104313100400
65425512033
71302326253
oct335015365
9131020653
1057940725
112a7847a7
12174a2619
13c00886b
1479a35d3
155147950
hex3741af5

57940725 has 24 divisors (see below), whose sum is σ = 96511680. Its totient is φ = 30670720.

The previous prime is 57940721. The next prime is 57940739. The reversal of 57940725 is 52704975.

It is not a de Polignac number, because 57940725 - 22 = 57940721 is a prime.

It is a super-2 number, since 2×579407252 = 6714255227051250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57940721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7456 + ... + 13094.

It is an arithmetic number, because the mean of its divisors is an integer number (4021320).

Almost surely, 257940725 is an apocalyptic number.

It is an amenable number.

57940725 is a deficient number, since it is larger than the sum of its proper divisors (38570955).

57940725 is a wasteful number, since it uses less digits than its factorization.

57940725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789 (or 5784 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 57940725 is about 7611.8805166660. The cubic root of 57940725 is about 386.9557534762.

The spelling of 57940725 in words is "fifty-seven million, nine hundred forty thousand, seven hundred twenty-five".

Divisors: 1 3 5 15 25 75 137 411 685 2055 3425 5639 10275 16917 28195 84585 140975 422925 772543 2317629 3862715 11588145 19313575 57940725