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57303557 = 2319712647
BaseRepresentation
bin1101101010011…
…0001000000101
310222211022200222
43122212020011
5104132203212
65404114125
71264033523
oct332461005
9128738628
1057303557
112a38a013
1217235945
13bb4483c
147879313
15506dc72
hex36a6205

57303557 has 8 divisors (see below), whose sum is σ = 60103296. Its totient is φ = 54529552.

The previous prime is 57303539. The next prime is 57303569. The reversal of 57303557 is 75530375.

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

It is a cyclic number.

It is not a de Polignac number, because 57303557 - 210 = 57302533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57303577) 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, 1793 + ... + 10854.

It is an arithmetic number, because the mean of its divisors is an integer number (7512912).

Almost surely, 257303557 is an apocalyptic number.

It is an amenable number.

57303557 is a deficient number, since it is larger than the sum of its proper divisors (2799739).

57303557 is a wasteful number, since it uses less digits than its factorization.

57303557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12867.

The product of its (nonzero) digits is 55125, while the sum is 35.

The square root of 57303557 is about 7569.9112940642. The cubic root of 57303557 is about 385.5320848986.

The spelling of 57303557 in words is "fifty-seven million, three hundred three thousand, five hundred fifty-seven".

Divisors: 1 23 197 4531 12647 290881 2491459 57303557