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317032340 = 22515851617
BaseRepresentation
bin10010111001011…
…000011110010100
3211002112220121112
4102321120132110
51122130013330
651243034152
710566505352
oct2271303624
9732486545
10317032340
11152a580a9
128a20b958
13508b2501
14301687d2
151cc75795
hex12e58794

317032340 has 12 divisors (see below), whose sum is σ = 665767956. Its totient is φ = 126812928.

The previous prime is 317032307. The next prime is 317032351. The reversal of 317032340 is 43230713.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 173080336 + 143952004 = 13156^2 + 11998^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7925789 + ... + 7925828.

It is an arithmetic number, because the mean of its divisors is an integer number (55480663).

Almost surely, 2317032340 is an apocalyptic number.

It is an amenable number.

317032340 is an abundant number, since it is smaller than the sum of its proper divisors (348735616).

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

317032340 is a wasteful number, since it uses less digits than its factorization.

317032340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15851626 (or 15851624 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 317032340 is about 17805.4019892840. The cubic root of 317032340 is about 681.8693804193.

It can be divided in two parts, 31703 and 2340, that added together give a palindrome (34043).

The spelling of 317032340 in words is "three hundred seventeen million, thirty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 15851617 31703234 63406468 79258085 158516170 317032340