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317225442 = 2373724259
BaseRepresentation
bin10010111010000…
…111100111100010
3211002220201111110
4102322013213202
51122202203232
651251124150
710601241342
oct2272074742
9732821443
10317225442
1115307a196
128a2a3656
135094c381
14301b8d22
151ccb2acc
hex12e879e2

317225442 has 16 divisors (see below), whose sum is σ = 643142880. Its totient is φ = 104293152.

The previous prime is 317225431. The next prime is 317225443. The reversal of 317225442 is 244522713.

It is not an unprimeable number, because it can be changed into a prime (317225443) 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, 361692 + ... + 362567.

It is an arithmetic number, because the mean of its divisors is an integer number (40196430).

Almost surely, 2317225442 is an apocalyptic number.

317225442 is an abundant number, since it is smaller than the sum of its proper divisors (325917438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317225442 is a wasteful number, since it uses less digits than its factorization.

317225442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724337.

The product of its digits is 13440, while the sum is 30.

The square root of 317225442 is about 17810.8237316526. The cubic root of 317225442 is about 682.0077928149.

The spelling of 317225442 in words is "three hundred seventeen million, two hundred twenty-five thousand, four hundred forty-two".

Divisors: 1 2 3 6 73 146 219 438 724259 1448518 2172777 4345554 52870907 105741814 158612721 317225442