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318811214 = 21279124633
BaseRepresentation
bin10011000000001…
…010110001001110
3211012220021202202
4103000022301032
51123103424324
651345121502
710620564521
oct2300126116
9735807682
10318811214
11153a62647
128a929292
13510860b7
14304acbb8
151cec78ae
hex1300ac4e

318811214 has 8 divisors (see below), whose sum is σ = 478594560. Its totient is φ = 159279696.

The previous prime is 318811201. The next prime is 318811243. The reversal of 318811214 is 412118813.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×3188112143 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59759 + ... + 64874.

It is an arithmetic number, because the mean of its divisors is an integer number (59824320).

Almost surely, 2318811214 is an apocalyptic number.

318811214 is a deficient number, since it is larger than the sum of its proper divisors (159783346).

318811214 is a wasteful number, since it uses less digits than its factorization.

318811214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125914.

The product of its digits is 1536, while the sum is 29.

The square root of 318811214 is about 17855.2853239594. The cubic root of 318811214 is about 683.1423295362.

The spelling of 318811214 in words is "three hundred eighteen million, eight hundred eleven thousand, two hundred fourteen".

Divisors: 1 2 1279 2558 124633 249266 159405607 318811214