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312463430 = 25149209707
BaseRepresentation
bin10010100111111…
…101000001000110
3210202221210020122
4102213331001012
51114442312210
651001101542
710512616046
oct2247750106
9722853218
10312463430
11150417444
12887878b2
134c972a06
142d6d9726
151c671b55
hex129fd046

312463430 has 16 divisors (see below), whose sum is σ = 566211600. Its totient is φ = 124145952.

The previous prime is 312463423. The next prime is 312463453. The reversal of 312463430 is 34364213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 312463430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103364 + ... + 106343.

It is an arithmetic number, because the mean of its divisors is an integer number (35388225).

Almost surely, 2312463430 is an apocalyptic number.

312463430 is a deficient number, since it is larger than the sum of its proper divisors (253748170).

312463430 is a wasteful number, since it uses less digits than its factorization.

312463430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209863.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 312463430 is about 17676.6351436013. The cubic root of 312463430 is about 678.5779321155.

The spelling of 312463430 in words is "three hundred twelve million, four hundred sixty-three thousand, four hundred thirty".

Divisors: 1 2 5 10 149 298 745 1490 209707 419414 1048535 2097070 31246343 62492686 156231715 312463430