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56913212 = 22171316389
BaseRepresentation
bin1101100100011…
…0110100111100
310222002111020202
43121012310330
5104032210322
65351503032
71260516506
oct331066474
9128074222
1056913212
112a142814
1217087a78
13ba38c75
1477b6d76
154ee3292
hex3646d3c

56913212 has 24 divisors (see below), whose sum is σ = 106278480. Its totient is φ = 26574080.

The previous prime is 56913211. The next prime is 56913221. The reversal of 56913212 is 21231965.

It is a super-2 number, since 2×569132122 = 6478227400313888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56913211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5714 + ... + 12102.

It is an arithmetic number, because the mean of its divisors is an integer number (4428270).

Almost surely, 256913212 is an apocalyptic number.

It is an amenable number.

56913212 is a deficient number, since it is larger than the sum of its proper divisors (49365268).

56913212 is a wasteful number, since it uses less digits than its factorization.

56913212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6541 (or 6539 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The square root of 56913212 is about 7544.0845700456. The cubic root of 56913212 is about 384.6546901000.

The spelling of 56913212 in words is "fifty-six million, nine hundred thirteen thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 131 262 524 2227 4454 6389 8908 12778 25556 108613 217226 434452 836959 1673918 3347836 14228303 28456606 56913212