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312553012 = 22975411489
BaseRepresentation
bin10010101000010…
…010111000110100
3210210010100010111
4102220102320310
51120003144022
651003032404
710513441162
oct2250227064
9723110114
10312553012
11150478782
128880b704
134c9a4715
142d720232
151c68d477
hex12a12e34

312553012 has 24 divisors (see below), whose sum is σ = 553999880. Its totient is φ = 154275840.

The previous prime is 312553001. The next prime is 312553051. The reversal of 312553012 is 210355213.

It can be written as a sum of positive squares in 4 ways, for example, as 8259876 + 304293136 = 2874^2 + 17444^2 .

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, 209164 + ... + 210652.

Almost surely, 2312553012 is an apocalyptic number.

It is an amenable number.

312553012 is a deficient number, since it is larger than the sum of its proper divisors (241446868).

312553012 is a wasteful number, since it uses less digits than its factorization.

312553012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131 (or 2129 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 312553012 is about 17679.1688718673. The cubic root of 312553012 is about 678.6427744342.

The spelling of 312553012 in words is "three hundred twelve million, five hundred fifty-three thousand, twelve".

Divisors: 1 2 4 97 194 388 541 1082 1489 2164 2978 5956 52477 104954 144433 209908 288866 577732 805549 1611098 3222196 78138253 156276506 312553012