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663180312 = 23394729179
BaseRepresentation
bin100111100001110…
…101010000011000
31201012220001100210
4213201311100120
52324233232222
6145450131120
722301640204
oct4741652030
91635801323
10663180312
11310391203
12166120aa0
13a751a2b2
1464111b04
153d34cd0c
hex27875418

663180312 has 32 divisors (see below), whose sum is σ = 1659758400. Its totient is φ = 220819104.

The previous prime is 663180283. The next prime is 663180317. The reversal of 663180312 is 213081366.

It is a self number, because there is not a number n which added to its sum of digits gives 663180312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663180317) 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 7 ways as a sum of consecutive naturals, for example, 8139 + ... + 37317.

It is an arithmetic number, because the mean of its divisors is an integer number (51867450).

Almost surely, 2663180312 is an apocalyptic number.

It is an amenable number.

663180312 is an abundant number, since it is smaller than the sum of its proper divisors (996578088).

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

663180312 is a wasteful number, since it uses less digits than its factorization.

663180312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30135 (or 30131 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 663180312 is about 25752.2875100446. The cubic root of 663180312 is about 872.0549968119.

The spelling of 663180312 in words is "six hundred sixty-three million, one hundred eighty thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 947 1894 2841 3788 5682 7576 11364 22728 29179 58358 87537 116716 175074 233432 350148 700296 27632513 55265026 82897539 110530052 165795078 221060104 331590156 663180312