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56805736 = 23131035303
BaseRepresentation
bin1101100010110…
…0100101101000
310221220000211011
43120230211220
5104020240421
65345313304
71256561251
oct330544550
9127800734
1056805736
112a079a99
1217035834
13b9cc080
147789b28
154ec14e1
hex362c968

56805736 has 32 divisors (see below), whose sum is σ = 115839360. Its totient is φ = 25958592.

The previous prime is 56805719. The next prime is 56805737. The reversal of 56805736 is 63750865.

It is not an unprimeable number, because it can be changed into a prime (56805737) 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, 8061 + ... + 13363.

It is an arithmetic number, because the mean of its divisors is an integer number (3619980).

Almost surely, 256805736 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 56805736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57919680).

56805736 is an abundant number, since it is smaller than the sum of its proper divisors (59033624).

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

56805736 is a wasteful number, since it uses less digits than its factorization.

56805736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5425 (or 5421 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 56805736 is about 7536.9580070477. The cubic root of 56805736 is about 384.4124077635.

The spelling of 56805736 in words is "fifty-six million, eight hundred five thousand, seven hundred thirty-six".

Divisors: 1 2 4 8 13 26 52 103 104 206 412 824 1339 2678 5303 5356 10606 10712 21212 42424 68939 137878 275756 546209 551512 1092418 2184836 4369672 7100717 14201434 28402868 56805736