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318680037 = 32132723761
BaseRepresentation
bin10010111111101…
…010101111100101
3211012122121211100
4102333222233211
51123040230122
651342230313
710616510214
oct2277525745
9735577740
10318680037
11153983035
128a885399
135103b490
143047707b
151ce9daac
hex12feabe5

318680037 has 12 divisors (see below), whose sum is σ = 495724684. Its totient is φ = 196110720.

The previous prime is 318680029. The next prime is 318680039. The reversal of 318680037 is 730086813.

It can be written as a sum of positive squares in 2 ways, for example, as 193933476 + 124746561 = 13926^2 + 11169^2 .

It is not a de Polignac number, because 318680037 - 23 = 318680029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 318679983 and 318680010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318680039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1361764 + ... + 1361997.

Almost surely, 2318680037 is an apocalyptic number.

It is an amenable number.

318680037 is a deficient number, since it is larger than the sum of its proper divisors (177044647).

318680037 is a wasteful number, since it uses less digits than its factorization.

318680037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723780 (or 2723777 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 318680037 is about 17851.6116079193. The cubic root of 318680037 is about 683.0486221939.

The spelling of 318680037 in words is "three hundred eighteen million, six hundred eighty thousand, thirty-seven".

Divisors: 1 3 9 13 39 117 2723761 8171283 24513849 35408893 106226679 318680037