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312042404 = 22319725943
BaseRepresentation
bin10010100110010…
…110001110100100
3210202011101201002
4102212112032210
51114340324104
650544052432
710506213422
oct2246261644
9722141632
10312042404
1115015a093
1288604118
134c85619b
142d62a112
151c5dc01e
hex129963a4

312042404 has 24 divisors (see below), whose sum is σ = 569522688. Its totient is φ = 149425920.

The previous prime is 312042343. The next prime is 312042457. The reversal of 312042404 is 404240213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 944 + ... + 24999.

It is an arithmetic number, because the mean of its divisors is an integer number (23730112).

Almost surely, 2312042404 is an apocalyptic number.

It is an amenable number.

312042404 is a deficient number, since it is larger than the sum of its proper divisors (257480284).

312042404 is a wasteful number, since it uses less digits than its factorization.

312042404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26075 (or 26073 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 312042404 is about 17664.7220187582. The cubic root of 312042404 is about 678.2730139054.

Adding to 312042404 its reverse (404240213), we get a palindrome (716282617).

The spelling of 312042404 in words is "three hundred twelve million, forty-two thousand, four hundred four".

Divisors: 1 2 4 31 62 97 124 194 388 3007 6014 12028 25943 51886 103772 804233 1608466 2516471 3216932 5032942 10065884 78010601 156021202 312042404