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57043230 = 2354094649
BaseRepresentation
bin1101100110011…
…0100100011110
310222100002121020
43121212210132
5104100340410
65354345010
71261600536
oct331464436
9128302536
1057043230
112a221472
121712b166
13ba831ba
14780c4c6
15501ba70
hex366691e

57043230 has 32 divisors (see below), whose sum is σ = 137268000. Its totient is φ = 15171072.

The previous prime is 57043229. The next prime is 57043247. The reversal of 57043230 is 3234075.

It is a self number, because there is not a number n which added to its sum of digits gives 57043230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9946 + ... + 14594.

It is an arithmetic number, because the mean of its divisors is an integer number (4289625).

Almost surely, 257043230 is an apocalyptic number.

57043230 is an abundant number, since it is smaller than the sum of its proper divisors (80224770).

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

57043230 is a wasteful number, since it uses less digits than its factorization.

57043230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5068.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 57043230 is about 7552.6968693308. The cubic root of 57043230 is about 384.9473813510.

The spelling of 57043230 in words is "fifty-seven million, forty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 409 818 1227 2045 2454 4090 4649 6135 9298 12270 13947 23245 27894 46490 69735 139470 1901441 3802882 5704323 9507205 11408646 19014410 28521615 57043230