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56445801 = 361308447
BaseRepresentation
bin1101011101010…
…0101101101001
310221012202002020
43113110231221
5103422231201
65333455053
71253532006
oct327245551
9127182066
1056445801
1129953625
1216aa1489
13b9042a9
1476d48ad
154e4ea36
hex35d4b69

56445801 has 8 divisors (see below), whose sum is σ = 76495104. Its totient is φ = 37013520.

The previous prime is 56445793. The next prime is 56445811. The reversal of 56445801 is 10854465.

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

It is not a de Polignac number, because 56445801 - 23 = 56445793 is a prime.

It is a super-2 number, since 2×564458012 = 6372256901063202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56445811) 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, 154041 + ... + 154406.

It is an arithmetic number, because the mean of its divisors is an integer number (9561888).

Almost surely, 256445801 is an apocalyptic number.

It is an amenable number.

56445801 is a deficient number, since it is larger than the sum of its proper divisors (20049303).

56445801 is a wasteful number, since it uses less digits than its factorization.

56445801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308511.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 56445801 is about 7513.0420603109. The cubic root of 56445801 is about 383.5987766190.

The spelling of 56445801 in words is "fifty-six million, four hundred forty-five thousand, eight hundred one".

Divisors: 1 3 61 183 308447 925341 18815267 56445801