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63880863 = 331686891
BaseRepresentation
bin1111001110101…
…1111010011111
311110012111001220
43303223322133
5112323141423
610201104423
71403656404
oct363537237
9143174056
1063880863
1133071702
1219488113
1310308537
1486ac2ab
15591c9e3
hex3cebe9f

63880863 has 8 divisors (see below), whose sum is σ = 87922176. Its totient is φ = 41213400.

The previous prime is 63880813. The next prime is 63880871. The reversal of 63880863 is 36808836.

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

It is not a de Polignac number, because 63880863 - 29 = 63880351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63880813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343353 + ... + 343538.

It is an arithmetic number, because the mean of its divisors is an integer number (10990272).

Almost surely, 263880863 is an apocalyptic number.

63880863 is a deficient number, since it is larger than the sum of its proper divisors (24041313).

63880863 is a wasteful number, since it uses less digits than its factorization.

63880863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686925.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 63880863 is about 7992.5504690305. The cubic root of 63880863 is about 399.7516437465.

The spelling of 63880863 in words is "sixty-three million, eight hundred eighty thousand, eight hundred sixty-three".

Divisors: 1 3 31 93 686891 2060673 21293621 63880863