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56726481 = 372701261
BaseRepresentation
bin1101100001100…
…1001111010001
310221202000002210
43120121033101
5104010221411
65343502333
71256111220
oct330311721
9127660083
1056726481
112a025499
1216bb79a9
13b9a1c86
147768cb7
154ea7ca6
hex36193d1

56726481 has 8 divisors (see below), whose sum is σ = 86440384. Its totient is φ = 32415120.

The previous prime is 56726479. The next prime is 56726491. The reversal of 56726481 is 18462765.

56726481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56726481 - 21 = 56726479 is a prime.

It is a super-2 number, since 2×567264812 = 6435787293286722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56726491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1350610 + ... + 1350651.

It is an arithmetic number, because the mean of its divisors is an integer number (10805048).

Almost surely, 256726481 is an apocalyptic number.

It is an amenable number.

56726481 is a deficient number, since it is larger than the sum of its proper divisors (29713903).

56726481 is a wasteful number, since it uses less digits than its factorization.

56726481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701271.

The product of its digits is 80640, while the sum is 39.

The square root of 56726481 is about 7531.6984140365. The cubic root of 56726481 is about 384.2335479777.

The spelling of 56726481 in words is "fifty-six million, seven hundred twenty-six thousand, four hundred eighty-one".

Divisors: 1 3 7 21 2701261 8103783 18908827 56726481