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317118630 = 23510570621
BaseRepresentation
bin10010111001101…
…101100010100110
3211002201021222110
4102321231202212
51122140244010
651244541450
710600315053
oct2271554246
9732637873
10317118630
11153006a14
128a251886
135091287a
143018c02a
151cc91120
hex12e6d8a6

317118630 has 16 divisors (see below), whose sum is σ = 761084784. Its totient is φ = 84564960.

The previous prime is 317118617. The next prime is 317118649. The reversal of 317118630 is 36811713.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 10570621 = 317118630 / (3 + 1 + 7 + 1 + 1 + 8 + 6 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5285281 + ... + 5285340.

It is an arithmetic number, because the mean of its divisors is an integer number (47567799).

Almost surely, 2317118630 is an apocalyptic number.

317118630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

317118630 is an abundant number, since it is smaller than the sum of its proper divisors (443966154).

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

317118630 is a wasteful number, since it uses less digits than its factorization.

317118630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10570631.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 317118630 is about 17807.8249654471. The cubic root of 317118630 is about 681.9312386422.

The spelling of 317118630 in words is "three hundred seventeen million, one hundred eighteen thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 10570621 21141242 31711863 52853105 63423726 105706210 158559315 317118630