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56690726 = 228345363
BaseRepresentation
bin1101100001000…
…0100000100110
310221200012001112
43120100200212
5104003100401
65343025022
71255602041
oct330204046
9127605045
1056690726
112a000644
1216b9b172
13b98b911
147759c58
154e9c3bb
hex3610826

56690726 has 4 divisors (see below), whose sum is σ = 85036092. Its totient is φ = 28345362.

The previous prime is 56690717. The next prime is 56690729. The reversal of 56690726 is 62709665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62709665 = 512541933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56690729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14172680 + ... + 14172683.

It is an arithmetic number, because the mean of its divisors is an integer number (21259023).

Almost surely, 256690726 is an apocalyptic number.

56690726 is a deficient number, since it is larger than the sum of its proper divisors (28345366).

56690726 is a wasteful number, since it uses less digits than its factorization.

56690726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28345365.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 56690726 is about 7529.3244052837. The cubic root of 56690726 is about 384.1528028671.

The spelling of 56690726 in words is "fifty-six million, six hundred ninety thousand, seven hundred twenty-six".

Divisors: 1 2 28345363 56690726