Search a number
-
+
57047804 = 22111968239
BaseRepresentation
bin1101100110011…
…1101011111100
310222100022212122
43121213223330
5104101012204
65354422112
71261620062
oct331475374
9128308778
1057047804
112a224950
1217131938
13ba852c8
147810032
15501d0be
hex3667afc

57047804 has 24 divisors (see below), whose sum is σ = 114643200. Its totient is φ = 24565680.

The previous prime is 57047803. The next prime is 57047807. The reversal of 57047804 is 40874075.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57047803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33284 + ... + 34955.

It is an arithmetic number, because the mean of its divisors is an integer number (4776800).

Almost surely, 257047804 is an apocalyptic number.

It is an amenable number.

57047804 is an abundant number, since it is smaller than the sum of its proper divisors (57595396).

57047804 is a wasteful number, since it uses less digits than its factorization.

57047804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68273 (or 68271 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 57047804 is about 7552.9996690057. Note that the first 3 decimals coincide. The cubic root of 57047804 is about 384.9576700523.

The spelling of 57047804 in words is "fifty-seven million, forty-seven thousand, eight hundred four".

Divisors: 1 2 4 11 19 22 38 44 76 209 418 836 68239 136478 272956 750629 1296541 1501258 2593082 3002516 5186164 14261951 28523902 57047804