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57900491 = 1124121841
BaseRepresentation
bin1101110011011…
…1110111001011
311000221122112122
43130313313023
5104310303431
65425001455
71302101045
oct334676713
9130848478
1057900491
112a757550
121748328b
13bcc345c
147992a95
15513aa7b
hex3737dcb

57900491 has 8 divisors (see below), whose sum is σ = 63429168. Its totient is φ = 52416000.

The previous prime is 57900439. The next prime is 57900509. The reversal of 57900491 is 19400975.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57900491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57900421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8270 + ... + 13571.

It is an arithmetic number, because the mean of its divisors is an integer number (7928646).

Almost surely, 257900491 is an apocalyptic number.

57900491 is a deficient number, since it is larger than the sum of its proper divisors (5528677).

57900491 is a wasteful number, since it uses less digits than its factorization.

57900491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22093.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 57900491 is about 7609.2372153850. The cubic root of 57900491 is about 386.8661654658.

The spelling of 57900491 in words is "fifty-seven million, nine hundred thousand, four hundred ninety-one".

Divisors: 1 11 241 2651 21841 240251 5263681 57900491