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56890847 = 138949171
BaseRepresentation
bin1101100100000…
…1010111011111
310222001100120102
43121001113133
5104031001342
65351211315
71260364346
oct331012737
9128040512
1056890847
112a127a32
1217076b3b
13ba2ba30
1477acb5d
154edb832
hex36415df

56890847 has 8 divisors (see below), whose sum is σ = 61956720. Its totient is φ = 51923520.

The previous prime is 56890831. The next prime is 56890879. The reversal of 56890847 is 74809865.

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

It is a cyclic number.

It is not a de Polignac number, because 56890847 - 24 = 56890831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56890817) 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, 23429 + ... + 25742.

It is an arithmetic number, because the mean of its divisors is an integer number (7744590).

Almost surely, 256890847 is an apocalyptic number.

56890847 is a deficient number, since it is larger than the sum of its proper divisors (5065873).

56890847 is a wasteful number, since it uses less digits than its factorization.

56890847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49273.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 56890847 is about 7542.6021371938. The cubic root of 56890847 is about 384.6042979974.

The spelling of 56890847 in words is "fifty-six million, eight hundred ninety thousand, eight hundred forty-seven".

Divisors: 1 13 89 1157 49171 639223 4376219 56890847