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56180412 = 22331373797
BaseRepresentation
bin1101011001001…
…1111010111100
310220201021001000
43112103322330
5103340233122
65324050300
71251345201
oct326237274
9126637030
1056180412
11297921a2
1216993990
13b840562
147665ca8
154deb0ac
hex3593ebc

56180412 has 48 divisors (see below), whose sum is σ = 146754720. Its totient is φ = 18585216.

The previous prime is 56180407. The next prime is 56180413. The reversal of 56180412 is 21408165.

56180412 is a `hidden beast` number, since 5 + 618 + 0 + 41 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56180413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12898 + ... + 16694.

It is an arithmetic number, because the mean of its divisors is an integer number (3057390).

Almost surely, 256180412 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 56180412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73377360).

56180412 is an abundant number, since it is smaller than the sum of its proper divisors (90574308).

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

56180412 is a wasteful number, since it uses less digits than its factorization.

56180412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3947 (or 3939 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 56180412 is about 7495.3593643000. The cubic root of 56180412 is about 382.9966482083.

Adding to 56180412 its reverse (21408165), we get a palindrome (77588577).

The spelling of 56180412 in words is "fifty-six million, one hundred eighty thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 137 274 411 548 822 1233 1644 2466 3699 3797 4932 7398 7594 11391 14796 15188 22782 34173 45564 68346 102519 136692 205038 410076 520189 1040378 1560567 2080756 3121134 4681701 6242268 9363402 14045103 18726804 28090206 56180412