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56204430 = 23515711933
BaseRepresentation
bin1101011001100…
…1110010001110
310220202110222120
43112121302032
5103342020210
65324353410
71251505212
oct326316216
9126673876
1056204430
11297a9247
12169a5866
13b84b479
147670942
154e03270
hex3599c8e

56204430 has 32 divisors (see below), whose sum is σ = 135761184. Its totient is φ = 14891136.

The previous prime is 56204429. The next prime is 56204441. The reversal of 56204430 is 3440265.

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 56204430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1257 + ... + 10676.

It is an arithmetic number, because the mean of its divisors is an integer number (4242537).

Almost surely, 256204430 is an apocalyptic number.

56204430 is an abundant number, since it is smaller than the sum of its proper divisors (79556754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56204430 is a wasteful number, since it uses less digits than its factorization.

56204430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12100.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 56204430 is about 7496.9613844544. The cubic root of 56204430 is about 383.0512194405.

Adding to 56204430 its reverse (3440265), we get a palindrome (59644695).

The spelling of 56204430 in words is "fifty-six million, two hundred four thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 157 314 471 785 942 1570 2355 4710 11933 23866 35799 59665 71598 119330 178995 357990 1873481 3746962 5620443 9367405 11240886 18734810 28102215 56204430