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57350091 = 3103185599
BaseRepresentation
bin1101101011000…
…1011111001011
310222220200112110
43122301133023
5104140200331
65405113403
71264316301
oct332613713
9128820473
1057350091
112a410a77
1217258863
13bb5ca86
14788c271
15507c946
hex36b17cb

57350091 has 8 divisors (see below), whose sum is σ = 77209600. Its totient is φ = 37861992.

The previous prime is 57350077. The next prime is 57350119. The reversal of 57350091 is 19005375.

It is a happy number.

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

It is not a de Polignac number, because 57350091 - 219 = 56825803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57350791) 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, 92491 + ... + 93108.

It is an arithmetic number, because the mean of its divisors is an integer number (9651200).

Almost surely, 257350091 is an apocalyptic number.

57350091 is a deficient number, since it is larger than the sum of its proper divisors (19859509).

57350091 is a wasteful number, since it uses less digits than its factorization.

57350091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185705.

The product of its (nonzero) digits is 4725, while the sum is 30.

The square root of 57350091 is about 7572.9842862639. The cubic root of 57350091 is about 385.6364152226.

The spelling of 57350091 in words is "fifty-seven million, three hundred fifty thousand, ninety-one".

Divisors: 1 3 103 309 185599 556797 19116697 57350091