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57302430 = 2352383047
BaseRepresentation
bin1101101010010…
…1110110011110
310222211021011020
43122211312132
5104132134210
65404105010
71264030323
oct332456636
9128737136
1057302430
112a389189
1217235166
13bb44183
147878b4a
15506d770
hex36a5d9e

57302430 has 32 divisors (see below), whose sum is σ = 143506944. Its totient is φ = 14616096.

The previous prime is 57302429. The next prime is 57302437. The reversal of 57302430 is 3420375.

It is a self number, because there is not a number n which added to its sum of digits gives 57302430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57302437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40834 + ... + 42213.

It is an arithmetic number, because the mean of its divisors is an integer number (4484592).

Almost surely, 257302430 is an apocalyptic number.

57302430 is an abundant number, since it is smaller than the sum of its proper divisors (86204514).

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

57302430 is a wasteful number, since it uses less digits than its factorization.

57302430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83080.

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

The square root of 57302430 is about 7569.8368542525. The cubic root of 57302430 is about 385.5295574377.

The spelling of 57302430 in words is "fifty-seven million, three hundred two thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 83047 166094 249141 415235 498282 830470 1245705 1910081 2491410 3820162 5730243 9550405 11460486 19100810 28651215 57302430