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56308408 = 2313678081
BaseRepresentation
bin1101011011001…
…1001010111000
310220221202121121
43112303022320
5103403332113
65330515024
71252420312
oct326631270
9126852547
1056308408
112986a382
1216a35a74
13b8868b0
14769a7b2
154e23e8d
hex35b32b8

56308408 has 32 divisors (see below), whose sum is σ = 115410960. Its totient is φ = 25597440.

The previous prime is 56308391. The next prime is 56308423. The reversal of 56308408 is 80480365.

It is a super-2 number, since 2×563084082 = 6341273622988928, which contains 22 as substring.

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, 2928 + ... + 11008.

Almost surely, 256308408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56308408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57705480).

56308408 is an abundant number, since it is smaller than the sum of its proper divisors (59102552).

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

56308408 is a wasteful number, since it uses less digits than its factorization.

56308408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8167 (or 8163 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 56308408 is about 7503.8928563779. The cubic root of 56308408 is about 383.2872883993.

The spelling of 56308408 in words is "fifty-six million, three hundred eight thousand, four hundred eight".

Divisors: 1 2 4 8 13 26 52 67 104 134 268 536 871 1742 3484 6968 8081 16162 32324 64648 105053 210106 420212 541427 840424 1082854 2165708 4331416 7038551 14077102 28154204 56308408