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312048868 = 22411902737
BaseRepresentation
bin10010100110010…
…111110011100100
3210202011201120111
4102212113303210
51114341030433
650544142404
710506241315
oct2246276344
9722151514
10312048868
11150163a2a
1288607a04
134c859101
142d62c60c
151c5dddcd
hex12997ce4

312048868 has 12 divisors (see below), whose sum is σ = 559404972. Its totient is φ = 152218880.

The previous prime is 312048853. The next prime is 312048871. The reversal of 312048868 is 868840213.

It can be written as a sum of positive squares in 2 ways, for example, as 70930084 + 241118784 = 8422^2 + 15528^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 312048868.

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, 951205 + ... + 951532.

It is an arithmetic number, because the mean of its divisors is an integer number (46617081).

Almost surely, 2312048868 is an apocalyptic number.

It is an amenable number.

312048868 is a deficient number, since it is larger than the sum of its proper divisors (247356104).

312048868 is a wasteful number, since it uses less digits than its factorization.

312048868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902782 (or 1902780 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 312048868 is about 17664.9049813465. The cubic root of 312048868 is about 678.2776973783.

The spelling of 312048868 in words is "three hundred twelve million, forty-eight thousand, eight hundred sixty-eight".

Divisors: 1 2 4 41 82 164 1902737 3805474 7610948 78012217 156024434 312048868