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318147630 = 23510604921
BaseRepresentation
bin10010111101101…
…000110000101110
3211011122120111120
4102331220300232
51122421211010
651323001410
710612132053
oct2275506056
9734576446
10318147630
1115364a029
128a669266
1350bb3048
143037902a
151cde5e70
hex12f68c2e

318147630 has 16 divisors (see below), whose sum is σ = 763554384. Its totient is φ = 84839360.

The previous prime is 318147611. The next prime is 318147649. The reversal of 318147630 is 36741813.

It is an interprime number because it is at equal distance from previous prime (318147611) and next prime (318147649).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 318147591 and 318147600.

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, 5302431 + ... + 5302490.

It is an arithmetic number, because the mean of its divisors is an integer number (47722149).

Almost surely, 2318147630 is an apocalyptic number.

318147630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

318147630 is an abundant number, since it is smaller than the sum of its proper divisors (445406754).

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

318147630 is a wasteful number, since it uses less digits than its factorization.

318147630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10604931.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 318147630 is about 17836.6933594767. The cubic root of 318147630 is about 682.6680287758.

The spelling of 318147630 in words is "three hundred eighteen million, one hundred forty-seven thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 10604921 21209842 31814763 53024605 63629526 106049210 159073815 318147630