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563890481 = 72111046179
BaseRepresentation
bin100001100111000…
…100100100110001
31110022001121022122
4201213010210301
52123323443411
6131542044025
716654663400
oct4147044461
91408047278
10563890481
1126a3352a0
12138a19615
138ca94b0b
1454c67637
15347889db
hex219c4931

563890481 has 12 divisors (see below), whose sum is σ = 715587120. Its totient is φ = 439394760.

The previous prime is 563890451. The next prime is 563890487. The reversal of 563890481 is 184098365.

It is not a de Polignac number, because 563890481 - 222 = 559696177 is a prime.

It is a super-2 number, since 2×5638904812 = 635944949124822722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (563890487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 522551 + ... + 523628.

It is an arithmetic number, because the mean of its divisors is an integer number (59632260).

Almost surely, 2563890481 is an apocalyptic number.

It is an amenable number.

563890481 is a deficient number, since it is larger than the sum of its proper divisors (151696639).

563890481 is a wasteful number, since it uses less digits than its factorization.

563890481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046204 (or 1046197 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 563890481 is about 23746.3782712228. The cubic root of 563890481 is about 826.1614402440.

The spelling of 563890481 in words is "five hundred sixty-three million, eight hundred ninety thousand, four hundred eighty-one".

Divisors: 1 7 11 49 77 539 1046179 7323253 11507969 51262771 80555783 563890481