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63881804 = 2272281493
BaseRepresentation
bin1111001110110…
…0001001001100
311110012112100202
43303230021030
5112323204204
610201113032
71403662220
oct363541114
9143175322
1063881804
1133072388
1219488778
1310308aac
1486ac780
15591ce1e
hex3cec24c

63881804 has 12 divisors (see below), whose sum is σ = 127763664. Its totient is φ = 27377904.

The previous prime is 63881803. The next prime is 63881827. The reversal of 63881804 is 40818836.

63881804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

63881804 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (63881803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140719 + ... + 1140774.

It is an arithmetic number, because the mean of its divisors is an integer number (10646972).

Almost surely, 263881804 is an apocalyptic number.

It is an amenable number.

63881804 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.

63881804 is a wasteful number, since it uses less digits than its factorization.

63881804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281504 (or 2281502 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 63881804 is about 7992.6093361305. The cubic root of 63881804 is about 399.7536065902.

It can be divided in two parts, 6388 and 1804, that added together give a 13-th power (8192 = 213).

The spelling of 63881804 in words is "sixty-three million, eight hundred eighty-one thousand, eight hundred four".

Divisors: 1 2 4 7 14 28 2281493 4562986 9125972 15970451 31940902 63881804