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313172057 = 11223127669
BaseRepresentation
bin10010101010101…
…010000001011001
3210211021210022002
4102222222001121
51120133001212
651024210345
710521630032
oct2252520131
9724253262
10313172057
11150860890
1288a699b5
134cb60413
142d841a89
151c761ac2
hex12aaa059

313172057 has 8 divisors (see below), whose sum is σ = 343176960. Its totient is φ = 283422960.

The previous prime is 313172021. The next prime is 313172077. The reversal of 313172057 is 750271313.

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 313172057 - 224 = 296394841 is a prime.

It is a super-2 number, since 2×3131720572 = 196153474571222498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313172017) 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, 61382 + ... + 66287.

It is an arithmetic number, because the mean of its divisors is an integer number (42897120).

Almost surely, 2313172057 is an apocalyptic number.

It is an amenable number.

313172057 is a deficient number, since it is larger than the sum of its proper divisors (30004903).

313172057 is a wasteful number, since it uses less digits than its factorization.

313172057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127903.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 313172057 is about 17696.6679632071. The cubic root of 313172057 is about 679.0905207332.

The spelling of 313172057 in words is "three hundred thirteen million, one hundred seventy-two thousand, fifty-seven".

Divisors: 1 11 223 2453 127669 1404359 28470187 313172057