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317807425 = 52136731453
BaseRepresentation
bin10010111100010…
…101101101000001
3211011000021211101
4102330111231001
51122324314200
651311414401
710606214155
oct2274255501
9734007741
10317807425
11153437471
128a524401
1350ac4240
14302cb065
151cd7a26a
hex12f15b41

317807425 has 24 divisors (see below), whose sum is σ = 425318264. Its totient is φ = 234178560.

The previous prime is 317807411. The next prime is 317807437. The reversal of 317807425 is 524708713.

It can be written as a sum of positive squares in 12 ways, for example, as 74166544 + 243640881 = 8612^2 + 15609^2 .

It is not a de Polignac number, because 317807425 - 27 = 317807297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217999 + ... + 219451.

Almost surely, 2317807425 is an apocalyptic number.

It is an amenable number.

317807425 is a deficient number, since it is larger than the sum of its proper divisors (107510839).

317807425 is a wasteful number, since it uses less digits than its factorization.

317807425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149 (or 2144 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 317807425 is about 17827.1541475357. The cubic root of 317807425 is about 682.4246093828.

The spelling of 317807425 in words is "three hundred seventeen million, eight hundred seven thousand, four hundred twenty-five".

Divisors: 1 5 13 25 65 325 673 1453 3365 7265 8749 16825 18889 36325 43745 94445 218725 472225 977869 4889345 12712297 24446725 63561485 317807425