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63800538 = 2310633423
BaseRepresentation
bin1111001101100…
…0010011011010
311110001101212220
43303120103122
5112313104123
610155244510
71403203254
oct363302332
9143041786
1063800538
113301731a
1219449736
13102aaac9
14868acd4
155903ce3
hex3cd84da

63800538 has 8 divisors (see below), whose sum is σ = 127601088. Its totient is φ = 21266844.

The previous prime is 63800533. The next prime is 63800567. The reversal of 63800538 is 83500836.

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

63800538 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 63800499 and 63800508.

It is not an unprimeable number, because it can be changed into a prime (63800533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5316706 + ... + 5316717.

It is an arithmetic number, because the mean of its divisors is an integer number (15950136).

Almost surely, 263800538 is an apocalyptic number.

63800538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

63800538 is a wasteful number, since it uses less digits than its factorization.

63800538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10633428.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 63800538 is about 7987.5238966779. The cubic root of 63800538 is about 399.5840217218.

The spelling of 63800538 in words is "sixty-three million, eight hundred thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 10633423 21266846 31900269 63800538