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57316020 = 2235955267
BaseRepresentation
bin1101101010100…
…1001010110100
310222211221210120
43122221022310
5104133103040
65404251540
71264115046
oct332511264
9128757716
1057316020
112a398413
1217240bb0
13bb4a408
14787da96
1550727d0
hex36a92b4

57316020 has 24 divisors (see below), whose sum is σ = 160485024. Its totient is φ = 15284256.

The previous prime is 57316019. The next prime is 57316031. The reversal of 57316020 is 2061375.

57316020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×573160202 = 6570252297280800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477574 + ... + 477693.

It is an arithmetic number, because the mean of its divisors is an integer number (6686876).

Almost surely, 257316020 is an apocalyptic number.

It is an amenable number.

57316020 is an abundant number, since it is smaller than the sum of its proper divisors (103169004).

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

57316020 is a wasteful number, since it uses less digits than its factorization.

57316020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955279 (or 955277 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 57316020 is about 7570.7344425756. The cubic root of 57316020 is about 385.5600327744.

Adding to 57316020 its reverse (2061375), we get a palindrome (59377395).

The spelling of 57316020 in words is "fifty-seven million, three hundred sixteen thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 955267 1910534 2865801 3821068 4776335 5731602 9552670 11463204 14329005 19105340 28658010 57316020