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56680401 = 319994393
BaseRepresentation
bin1101100000110…
…1111111010001
310221122122220010
43120031333101
5104002233101
65342505133
71255526661
oct330157721
9127578803
1056680401
1129aa3908
1216b951a9
13b986ccb
1477561a1
154e992d6
hex360dfd1

56680401 has 8 divisors (see below), whose sum is σ = 79551520. Its totient is φ = 35798112.

The previous prime is 56680391. The next prime is 56680427. The reversal of 56680401 is 10408665.

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

It is not a de Polignac number, because 56680401 - 222 = 52486097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56680201) 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, 497140 + ... + 497253.

It is an arithmetic number, because the mean of its divisors is an integer number (9943940).

Almost surely, 256680401 is an apocalyptic number.

It is an amenable number.

56680401 is a deficient number, since it is larger than the sum of its proper divisors (22871119).

56680401 is a wasteful number, since it uses less digits than its factorization.

56680401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994415.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 56680401 is about 7528.6387215751. The cubic root of 56680401 is about 384.1294797195.

The spelling of 56680401 in words is "fifty-six million, six hundred eighty thousand, four hundred one".

Divisors: 1 3 19 57 994393 2983179 18893467 56680401