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56980449 = 3319313583
BaseRepresentation
bin1101100101011…
…1001111100001
310222012220111000
43121113033201
5104041333244
65353142213
71261216521
oct331271741
9128186430
1056980449
112a189289
12170ba969
13ba60756
1477d3681
155008169
hex36573e1

56980449 has 32 divisors (see below), whose sum is σ = 91750400. Its totient is φ = 34817040.

The previous prime is 56980423. The next prime is 56980493. The reversal of 56980449 is 94408965.

It is a happy number.

56980449 is a `hidden beast` number, since 569 + 80 + 4 + 4 + 9 = 666.

It is not a de Polignac number, because 56980449 - 211 = 56978401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56980249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14112 + ... + 17694.

It is an arithmetic number, because the mean of its divisors is an integer number (2867200).

Almost surely, 256980449 is an apocalyptic number.

It is an amenable number.

56980449 is a deficient number, since it is larger than the sum of its proper divisors (34769951).

56980449 is a wasteful number, since it uses less digits than its factorization.

56980449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642 (or 3636 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 56980449 is about 7548.5395276172. The cubic root of 56980449 is about 384.8061068997.

It can be divided in two parts, 569 and 80449, that added together give a palindrome (81018).

The spelling of 56980449 in words is "fifty-six million, nine hundred eighty thousand, four hundred forty-nine".

Divisors: 1 3 9 19 27 31 57 93 171 279 513 589 837 1767 3583 5301 10749 15903 32247 68077 96741 111073 204231 333219 612693 999657 1838079 2110387 2998971 6331161 18993483 56980449