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63286489 = 727118191
BaseRepresentation
bin1111000101101…
…0110011011001
311102002021202001
43301122303121
5112200131424
610140241001
71365632500
oct361326331
9142067661
1063286489
11327a6092
1219240161
131015ab36
148595837
155851844
hex3c5acd9

63286489 has 12 divisors (see below), whose sum is σ = 74659968. Its totient is φ = 53478600.

The previous prime is 63286481. The next prime is 63286567. The reversal of 63286489 is 98468236.

It is a happy number.

It is not a de Polignac number, because 63286489 - 23 = 63286481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63286481) 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, 5617 + ... + 12574.

It is an arithmetic number, because the mean of its divisors is an integer number (6221664).

Almost surely, 263286489 is an apocalyptic number.

It is an amenable number.

63286489 is a deficient number, since it is larger than the sum of its proper divisors (11373479).

63286489 is a wasteful number, since it uses less digits than its factorization.

63286489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18276 (or 18269 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 63286489 is about 7955.2805733048. The cubic root of 63286489 is about 398.5079602131.

The spelling of 63286489 in words is "sixty-three million, two hundred eighty-six thousand, four hundred eighty-nine".

Divisors: 1 7 49 71 497 3479 18191 127337 891359 1291561 9040927 63286489