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1312830882 = 2331121753223
BaseRepresentation
bin100111001000000…
…0011010110100010
310101111022201102000
41032100003112202
510142041042012
6334134304430
744350610166
oct11620032642
93344281360
101312830882
11614071300
123077b8116
1317bcab20c
14c6500ca6
157a3c6ddc
hex4e4035a2

1312830882 has 192 divisors, whose sum is σ = 3474938880. Its totient is φ = 365713920.

The previous prime is 1312830863. The next prime is 1312830907. The reversal of 1312830882 is 2880382131.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5887023 + ... + 5887245.

It is an arithmetic number, because the mean of its divisors is an integer number (18098640).

Almost surely, 21312830882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312830882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1737469440).

1312830882 is an abundant number, since it is smaller than the sum of its proper divisors (2162107998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312830882 is a wasteful number, since it uses less digits than its factorization.

1312830882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1312830882 is about 36233.0081831470. The cubic root of 1312830882 is about 1094.9717838479.

The spelling of 1312830882 in words is "one billion, three hundred twelve million, eight hundred thirty thousand, eight hundred eighty-two".