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19882567660 = 225994128383
BaseRepresentation
bin10010100001000101…
…111110011111101100
31220022122120002100211
4102201011332133230
5311204414131120
613044532232204
71302465015364
oct224105763754
956278502324
1019882567660
1184832113aa
123a2a76b664
131b4b26c647
14d688779a4
157b57c125a
hex4a117e7ec

19882567660 has 12 divisors (see below), whose sum is σ = 41753392128. Its totient is φ = 7953027056.

The previous prime is 19882567657. The next prime is 19882567673. The reversal of 19882567660 is 6676528891.

It is a junction number, because it is equal to n+sod(n) for n = 19882567595 and 19882567604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497064172 + ... + 497064211.

It is an arithmetic number, because the mean of its divisors is an integer number (3479449344).

Almost surely, 219882567660 is an apocalyptic number.

19882567660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19882567660 is an abundant number, since it is smaller than the sum of its proper divisors (21870824468).

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

19882567660 is a wasteful number, since it uses less digits than its factorization.

19882567660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994128392 (or 994128390 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 19882567660 in words is "nineteen billion, eight hundred eighty-two million, five hundred sixty-seven thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 994128383 1988256766 3976513532 4970641915 9941283830 19882567660