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57204208609 = 71805693079
BaseRepresentation
bin110101010001101000…
…101111001111100001
312110122122210212221221
4311101220233033201
51414123234133414
642140152415041
74063400515252
oct652150571741
9173578725857
1057204208609
1122295314669
12b1056a7481
135518474762
142aa9446b29
15174c09a224
hexd51a2f3e1

57204208609 has 4 divisors (see below), whose sum is σ = 58009901760. Its totient is φ = 56398515460.

The previous prime is 57204208597. The next prime is 57204208627. The reversal of 57204208609 is 90680240275.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57204208609 - 229 = 56667337697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57204278609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402846469 + ... + 402846610.

It is an arithmetic number, because the mean of its divisors is an integer number (14502475440).

Almost surely, 257204208609 is an apocalyptic number.

It is an amenable number.

57204208609 is a deficient number, since it is larger than the sum of its proper divisors (805693151).

57204208609 is an equidigital number, since it uses as much as digits as its factorization.

57204208609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805693150.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 57204208609 in words is "fifty-seven billion, two hundred four million, two hundred eight thousand, six hundred nine".

Divisors: 1 71 805693079 57204208609