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317951248 = 2419871953
BaseRepresentation
bin10010111100111…
…000110100010000
3211011021121010011
4102330320310100
51122343414443
651314444304
710610353366
oct2274706420
9734247104
10317951248
1115352552a
128a593694
1350b44844
1430327636
151cda7b9d
hex12f38d10

317951248 has 10 divisors (see below), whose sum is σ = 616030574. Its totient is φ = 158975616.

The previous prime is 317951243. The next prime is 317951251. The reversal of 317951248 is 842159713.

It can be written as a sum of positive squares in only one way, i.e., 264777984 + 53173264 = 16272^2 + 7292^2 .

It is a super-2 number, since 2×3179512482 = 202185992209515008, 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 317951248.

It is not an unprimeable number, because it can be changed into a prime (317951243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9935961 + ... + 9935992.

Almost surely, 2317951248 is an apocalyptic number.

It is an amenable number.

317951248 is a deficient number, since it is larger than the sum of its proper divisors (298079326).

317951248 is a wasteful number, since it uses less digits than its factorization.

317951248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19871961 (or 19871955 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 317951248 is about 17831.1875095295. The cubic root of 317951248 is about 682.5275370732.

The spelling of 317951248 in words is "three hundred seventeen million, nine hundred fifty-one thousand, two hundred forty-eight".

Divisors: 1 2 4 8 16 19871953 39743906 79487812 158975624 317951248