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57195961 = 315473373
BaseRepresentation
bin1101101000101…
…1110110111001
310222121212002221
43122023312321
5104120232321
65401524041
71263105034
oct332136671
9128555087
1057195961
112a316199
12171a3621
13bb07884
14784c01b
15504be41
hex368bdb9

57195961 has 8 divisors (see below), whose sum is σ = 59166464. Its totient is φ = 55233360.

The previous prime is 57195949. The next prime is 57195991. The reversal of 57195961 is 16959175.

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 57195961 - 29 = 57195449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57195991) 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, 15271 + ... + 18643.

It is an arithmetic number, because the mean of its divisors is an integer number (7395808).

Almost surely, 257195961 is an apocalyptic number.

It is an amenable number.

57195961 is a deficient number, since it is larger than the sum of its proper divisors (1970503).

57195961 is a wasteful number, since it uses less digits than its factorization.

57195961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951.

The product of its digits is 85050, while the sum is 43.

The square root of 57195961 is about 7562.8011345004. The cubic root of 57195961 is about 385.2906356635.

The spelling of 57195961 in words is "fifty-seven million, one hundred ninety-five thousand, nine hundred sixty-one".

Divisors: 1 31 547 3373 16957 104563 1845031 57195961