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663250060 = 225114370111
BaseRepresentation
bin100111100010000…
…110010010001100
31201020000121001001
4213202012102030
52324243000220
6145451430044
722302350434
oct4742062214
91636017031
10663250060
11310429650
12166155324
13a7542c75
146412d2c4
153d36380a
hex2788648c

663250060 has 48 divisors (see below), whose sum is σ = 1554803712. Its totient is φ = 235569600.

The previous prime is 663250031. The next prime is 663250061. The reversal of 663250060 is 60052366.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (663250061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25596 + ... + 44515.

It is an arithmetic number, because the mean of its divisors is an integer number (32391744).

Almost surely, 2663250060 is an apocalyptic number.

It is an amenable number.

663250060 is an abundant number, since it is smaller than the sum of its proper divisors (891553652).

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

663250060 is a wasteful number, since it uses less digits than its factorization.

663250060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70174 (or 70172 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 663250060 is about 25753.6416842356. The cubic root of 663250060 is about 872.0855676630.

The spelling of 663250060 in words is "six hundred sixty-three million, two hundred fifty thousand, sixty".

Divisors: 1 2 4 5 10 11 20 22 43 44 55 86 110 172 215 220 430 473 860 946 1892 2365 4730 9460 70111 140222 280444 350555 701110 771221 1402220 1542442 3014773 3084884 3856105 6029546 7712210 12059092 15073865 15424420 30147730 33162503 60295460 66325006 132650012 165812515 331625030 663250060