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63286912 = 271373521
BaseRepresentation
bin1111000101101…
…0111010000000
311102002022022201
43301122322000
5112200140122
610140242544
71365633643
oct361327200
9142068281
1063286912
11327a6437
1219240454
131015b0a0
148595a5a
155851a27
hex3c5ae80

63286912 has 64 divisors (see below), whose sum is σ = 137901960. Its totient is φ = 28753920.

The previous prime is 63286877. The next prime is 63286931. The reversal of 63286912 is 21968236.

It can be written as a sum of positive squares in 4 ways, for example, as 39237696 + 24049216 = 6264^2 + 4904^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121212 + ... + 121732.

Almost surely, 263286912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63286912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68950980).

63286912 is an abundant number, since it is smaller than the sum of its proper divisors (74615048).

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

63286912 is a wasteful number, since it uses less digits than its factorization.

63286912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 609 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 63286912 is about 7955.3071593748. The cubic root of 63286912 is about 398.5088480724.

Subtracting from 63286912 its sum of digits (37), we obtain a triangular number (63286875 = T11250).

The spelling of 63286912 in words is "sixty-three million, two hundred eighty-six thousand, nine hundred twelve".

Divisors: 1 2 4 8 13 16 26 32 52 64 73 104 128 146 208 292 416 521 584 832 949 1042 1168 1664 1898 2084 2336 3796 4168 4672 6773 7592 8336 9344 13546 15184 16672 27092 30368 33344 38033 54184 60736 66688 76066 108368 121472 152132 216736 304264 433472 494429 608528 866944 988858 1217056 1977716 2434112 3955432 4868224 7910864 15821728 31643456 63286912