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130856412 = 22317641453
BaseRepresentation
bin1111100110010…
…11010111011100
3100010020012020210
413303023113130
5231444401122
620552412420
73146155401
oct763132734
9303205223
10130856412
11679573a5
12379a7110
132115853b
14135442a8
15b74c40c
hex7ccb5dc

130856412 has 24 divisors (see below), whose sum is σ = 323292816. Its totient is φ = 41052928.

The previous prime is 130856387. The next prime is 130856423. The reversal of 130856412 is 214658031.

It is a self number, because there is not a number n which added to its sum of digits gives 130856412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320523 + ... + 320930.

It is an arithmetic number, because the mean of its divisors is an integer number (13470534).

Almost surely, 2130856412 is an apocalyptic number.

130856412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130856412 is an abundant number, since it is smaller than the sum of its proper divisors (192436404).

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

130856412 is a wasteful number, since it uses less digits than its factorization.

130856412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641477 (or 641475 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 130856412 is about 11439.2487515571. The cubic root of 130856412 is about 507.6896806885.

The spelling of 130856412 in words is "one hundred thirty million, eight hundred fifty-six thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 641453 1282906 1924359 2565812 3848718 7697436 10904701 21809402 32714103 43618804 65428206 130856412