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57020446 = 277355793
BaseRepresentation
bin1101100110000…
…1000000011110
310222021221100101
43121201000132
5104044123241
65354051314
71261444240
oct331410036
9128257311
1057020446
112a20633a
1217119b3a
13ba75a12
147804090
155014e31
hex366101e

57020446 has 16 divisors (see below), whose sum is σ = 99090144. Its totient is φ = 24102144.

The previous prime is 57020413. The next prime is 57020449. The reversal of 57020446 is 64402075.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57020449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26875 + ... + 28918.

It is an arithmetic number, because the mean of its divisors is an integer number (6193134).

Almost surely, 257020446 is an apocalyptic number.

57020446 is a deficient number, since it is larger than the sum of its proper divisors (42069698).

57020446 is a wasteful number, since it uses less digits than its factorization.

57020446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55875.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 57020446 is about 7551.1883832944. The cubic root of 57020446 is about 384.8961230971.

The spelling of 57020446 in words is "fifty-seven million, twenty thousand, four hundred forty-six".

Divisors: 1 2 7 14 73 146 511 1022 55793 111586 390551 781102 4072889 8145778 28510223 57020446