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57199109 = 115998681
BaseRepresentation
bin1101101000110…
…0101000000101
310222122000102112
43122030220011
5104120332414
65401550405
71263120152
oct332145005
9128560375
1057199109
112a3185a0
12171a5405
13bb09136
14784d229
15504cd3e
hex368ca05

57199109 has 8 divisors (see below), whose sum is σ = 62510400. Its totient is φ = 51906400.

The previous prime is 57199069. The next prime is 57199127. The reversal of 57199109 is 90199175.

It is a happy number.

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 57199109 - 28 = 57198853 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 (57199409) 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, 2249 + ... + 10929.

It is an arithmetic number, because the mean of its divisors is an integer number (7813800).

Almost surely, 257199109 is an apocalyptic number.

It is an amenable number.

57199109 is a deficient number, since it is larger than the sum of its proper divisors (5311291).

57199109 is a wasteful number, since it uses less digits than its factorization.

57199109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9291.

The product of its (nonzero) digits is 25515, while the sum is 41.

The square root of 57199109 is about 7563.0092555807. The cubic root of 57199109 is about 385.2977041851.

The spelling of 57199109 in words is "fifty-seven million, one hundred ninety-nine thousand, one hundred nine".

Divisors: 1 11 599 6589 8681 95491 5199919 57199109