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56024990 = 257800357
BaseRepresentation
bin1101010110110…
…1111110011110
310220102100211122
43111231332132
5103320244430
65320450542
71250130110
oct325557636
9126370748
1056024990
112969644a
1216919a52
13b7b78a8
1476253b0
154db9ee5
hex356df9e

56024990 has 16 divisors (see below), whose sum is σ = 115251552. Its totient is φ = 19208544.

The previous prime is 56024989. The next prime is 56024999. The reversal of 56024990 is 9942065.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56024990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56024999) 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, 400109 + ... + 400248.

It is an arithmetic number, because the mean of its divisors is an integer number (7203222).

Almost surely, 256024990 is an apocalyptic number.

56024990 is an abundant number, since it is smaller than the sum of its proper divisors (59226562).

56024990 is a wasteful number, since it uses less digits than its factorization.

56024990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800371.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 56024990 is about 7484.9843019207. The cubic root of 56024990 is about 382.6431377939.

The spelling of 56024990 in words is "fifty-six million, twenty-four thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 800357 1600714 4001785 5602499 8003570 11204998 28012495 56024990