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312414142 = 2190182171
BaseRepresentation
bin10010100111110…
…000111110111110
3210202212021122011
4102213300332332
51114434223032
651000041434
710512322255
oct2247607676
9722767564
10312414142
11150393407
128876327a
134c956451
142d6c579c
151c662247
hex129f0fbe

312414142 has 8 divisors (see below), whose sum is σ = 468873432. Its totient is φ = 156123000.

The previous prime is 312414139. The next prime is 312414149. The reversal of 312414142 is 241414213.

It is a happy number.

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

It is a super-2 number, since 2×3124141422 = 195205192243192328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312414149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37284 + ... + 44887.

It is an arithmetic number, because the mean of its divisors is an integer number (58609179).

Almost surely, 2312414142 is an apocalyptic number.

312414142 is a deficient number, since it is larger than the sum of its proper divisors (156459290).

312414142 is a wasteful number, since it uses less digits than its factorization.

312414142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84074.

The product of its digits is 768, while the sum is 22.

The square root of 312414142 is about 17675.2409318798. The cubic root of 312414142 is about 678.5422505982.

Adding to 312414142 its reverse (241414213), we get a palindrome (553828355).

The spelling of 312414142 in words is "three hundred twelve million, four hundred fourteen thousand, one hundred forty-two".

Divisors: 1 2 1901 3802 82171 164342 156207071 312414142