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312398426 = 2179188189
BaseRepresentation
bin10010100111101…
…101001001011010
3210202211111002002
4102213231021122
51114433222201
650555441002
710512225404
oct2247551132
9722744062
10312398426
1115038261a
1288756162
134c94c252
142d6bdb74
151c65c76b
hex129ed25a

312398426 has 8 divisors (see below), whose sum is σ = 496162260. Its totient is φ = 147011008.

The previous prime is 312398417. The next prime is 312398431. The reversal of 312398426 is 624893213.

312398426 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 307967401 + 4431025 = 17549^2 + 2105^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 312398426.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4594061 + ... + 4594128.

Almost surely, 2312398426 is an apocalyptic number.

312398426 is a deficient number, since it is larger than the sum of its proper divisors (183763834).

312398426 is a wasteful number, since it uses less digits than its factorization.

312398426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9188208.

The product of its digits is 62208, while the sum is 38.

The square root of 312398426 is about 17674.7963496047. The cubic root of 312398426 is about 678.5308723800.

The spelling of 312398426 in words is "three hundred twelve million, three hundred ninety-eight thousand, four hundred twenty-six".

Divisors: 1 2 17 34 9188189 18376378 156199213 312398426