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317086449 = 3829712739
BaseRepresentation
bin10010111001100…
…101101011110001
3211002122122211120
4102321211223301
51122133231244
651244132453
710600122201
oct2271455361
9732578746
10317086449
11152a94819
128a237129
1350901024
1430180401
151cc86819
hex12e65af1

317086449 has 8 divisors (see below), whose sum is σ = 422866080. Its totient is φ = 211348896.

The previous prime is 317086447. The next prime is 317086457. The reversal of 317086449 is 944680713.

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

It is not a de Polignac number, because 317086449 - 21 = 317086447 is a prime.

It is a super-2 number, since 2×3170864492 = 201087632278859202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 317086449.

It is not an unprimeable number, because it can be changed into a prime (317086447) 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, 18522 + ... + 31260.

It is an arithmetic number, because the mean of its divisors is an integer number (52858260).

Almost surely, 2317086449 is an apocalyptic number.

It is an amenable number.

317086449 is a deficient number, since it is larger than the sum of its proper divisors (105779631).

317086449 is a wasteful number, since it uses less digits than its factorization.

317086449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21039.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 317086449 is about 17806.9213790593. The cubic root of 317086449 is about 681.9081705435.

The spelling of 317086449 in words is "three hundred seventeen million, eighty-six thousand, four hundred forty-nine".

Divisors: 1 3 8297 12739 24891 38217 105695483 317086449