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16102195220 = 225805109761
BaseRepresentation
bin11101111111100010…
…00000000000010100
31112120012010021021202
432333301000000110
5230434130221340
611221445532032
71110012254366
oct167761000024
945505107252
1016102195220
1169132a6661
123154714018
131697cb7c87
14aca774d36
15643980c15
hex3bfc40014

16102195220 has 12 divisors (see below), whose sum is σ = 33814610004. Its totient is φ = 6440878080.

The previous prime is 16102195199. The next prime is 16102195231. The reversal of 16102195220 is 2259120161.

It can be written as a sum of positive squares in 2 ways, for example, as 2559752836 + 13542442384 = 50594^2 + 116372^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402554861 + ... + 402554900.

It is an arithmetic number, because the mean of its divisors is an integer number (2817884167).

Almost surely, 216102195220 is an apocalyptic number.

16102195220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16102195220 is an abundant number, since it is smaller than the sum of its proper divisors (17712414784).

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

16102195220 is a wasteful number, since it uses less digits than its factorization.

16102195220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805109770 (or 805109768 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 16102195220 in words is "sixteen billion, one hundred two million, one hundred ninety-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 805109761 1610219522 3220439044 4025548805 8051097610 16102195220