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57712705 = 5177173131
BaseRepresentation
bin1101110000101…
…0000001000001
311000121002221121
43130022001001
5104233301310
65420552241
71300356421
oct334120101
9130532847
1057712705
112a639456
12173b2681
13bc58b3b
147944481
1551000da
hex370a041

57712705 has 32 divisors (see below), whose sum is σ = 75955968. Its totient is φ = 41932800.

The previous prime is 57712667. The next prime is 57712723. The reversal of 57712705 is 50721775.

It is not a de Polignac number, because 57712705 - 213 = 57704513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440490 + ... + 440620.

It is an arithmetic number, because the mean of its divisors is an integer number (2373624).

Almost surely, 257712705 is an apocalyptic number.

It is an amenable number.

57712705 is a deficient number, since it is larger than the sum of its proper divisors (18243263).

57712705 is a wasteful number, since it uses less digits than its factorization.

57712705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297.

The product of its (nonzero) digits is 17150, while the sum is 34.

The square root of 57712705 is about 7596.8878496395. The cubic root of 57712705 is about 386.4474774201.

The spelling of 57712705 in words is "fifty-seven million, seven hundred twelve thousand, seven hundred five".

Divisors: 1 5 17 71 73 85 131 355 365 655 1207 1241 2227 5183 6035 6205 9301 9563 11135 25915 46505 47815 88111 158117 162571 440555 678973 790585 812855 3394865 11542541 57712705