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57204123 = 347405703
BaseRepresentation
bin1101101000110…
…1110110011011
310222122021022020
43122031312123
5104121012443
65402025523
71263140604
oct332156633
9128567266
1057204123
112a321339
12171a82a3
13bb0b4c2
147850dab
15504e583
hex368dd9b

57204123 has 8 divisors (see below), whose sum is σ = 77895168. Its totient is φ = 37324584.

The previous prime is 57204089. The next prime is 57204157. The reversal of 57204123 is 32140275.

It is an interprime number because it is at equal distance from previous prime (57204089) and next prime (57204157).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57204123 - 29 = 57203611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57204093 and 57204102.

It is not an unprimeable number, because it can be changed into a prime (57204023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202711 + ... + 202992.

It is an arithmetic number, because the mean of its divisors is an integer number (9736896).

Almost surely, 257204123 is an apocalyptic number.

57204123 is a deficient number, since it is larger than the sum of its proper divisors (20691045).

57204123 is a wasteful number, since it uses less digits than its factorization.

57204123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405753.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 57204123 is about 7563.3407301271. The cubic root of 57204123 is about 385.3089620892.

Adding to 57204123 its reverse (32140275), we get a palindrome (89344398).

The spelling of 57204123 in words is "fifty-seven million, two hundred four thousand, one hundred twenty-three".

Divisors: 1 3 47 141 405703 1217109 19068041 57204123