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57269199 = 31338689
BaseRepresentation
bin1101101001110…
…1101111001111
310222202120120110
43122131233033
5104130103244
65403251103
71263531411
oct332355717
9128676513
1057269199
112a366219
1217219a93
13bb32000
14786a9b1
1550639b9
hex369dbcf

57269199 has 16 divisors (see below), whose sum is σ = 82728800. Its totient is φ = 35238528.

The previous prime is 57269161. The next prime is 57269207. The reversal of 57269199 is 99196275.

It is not a de Polignac number, because 57269199 - 220 = 56220623 is a prime.

It is a super-2 number, since 2×572691992 = 6559522308203202, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57269119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2247 + ... + 10935.

It is an arithmetic number, because the mean of its divisors is an integer number (5170550).

Almost surely, 257269199 is an apocalyptic number.

57269199 is a deficient number, since it is larger than the sum of its proper divisors (25459601).

57269199 is an equidigital number, since it uses as much as digits as its factorization.

57269199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8731 (or 8705 counting only the distinct ones).

The product of its digits is 306180, while the sum is 48.

The square root of 57269199 is about 7567.6415744933. The cubic root of 57269199 is about 385.4550172010.

The spelling of 57269199 in words is "fifty-seven million, two hundred sixty-nine thousand, one hundred ninety-nine".

Divisors: 1 3 13 39 169 507 2197 6591 8689 26067 112957 338871 1468441 4405323 19089733 57269199