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317933430 = 23510597781
BaseRepresentation
bin10010111100110…
…100011101110110
3211011020200200020
4102330310131312
51122342332210
651314230010
710610250423
oct2274643566
9734220606
10317933430
11153513101
128a585306
1350b396b9
1430320d4a
151cda2770
hex12f34776

317933430 has 16 divisors (see below), whose sum is σ = 763040304. Its totient is φ = 84782240.

The previous prime is 317933411. The next prime is 317933437. The reversal of 317933430 is 34339713.

It is a junction number, because it is equal to n+sod(n) for n = 317933391 and 317933400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317933437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5298861 + ... + 5298920.

It is an arithmetic number, because the mean of its divisors is an integer number (47690019).

Almost surely, 2317933430 is an apocalyptic number.

317933430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

317933430 is an abundant number, since it is smaller than the sum of its proper divisors (445106874).

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

317933430 is a wasteful number, since it uses less digits than its factorization.

317933430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10597791.

The product of its (nonzero) digits is 20412, while the sum is 33.

The square root of 317933430 is about 17830.6878723172. The cubic root of 317933430 is about 682.5147872120.

The spelling of 317933430 in words is "three hundred seventeen million, nine hundred thirty-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 10597781 21195562 31793343 52988905 63586686 105977810 158966715 317933430