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56419807 = 109751431
BaseRepresentation
bin1101011100111…
…0010111011111
310221011102102111
43113032113133
5103420413212
65333134451
71253363143
oct327162737
9127142374
1056419807
1129936044
1216a8a427
13b8c5502
1476c9223
154e46ea7
hex35ce5df

56419807 has 4 divisors (see below), whose sum is σ = 56472336. Its totient is φ = 56367280.

The previous prime is 56419801. The next prime is 56419823. The reversal of 56419807 is 70891465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56419807 - 211 = 56417759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56419807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56419801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24619 + ... + 26812.

It is an arithmetic number, because the mean of its divisors is an integer number (14118084).

Almost surely, 256419807 is an apocalyptic number.

56419807 is a deficient number, since it is larger than the sum of its proper divisors (52529).

56419807 is a wasteful number, since it uses less digits than its factorization.

56419807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52528.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 56419807 is about 7511.3119360069. The cubic root of 56419807 is about 383.5398835603.

The spelling of 56419807 in words is "fifty-six million, four hundred nineteen thousand, eight hundred seven".

Divisors: 1 1097 51431 56419807