Search a number
-
+
180839912 = 23112054999
BaseRepresentation
bin10101100011101…
…10010111101000
3110121021121201112
422301312113220
5332243334122
625540005452
74324054031
oct1261662750
9417247645
10180839912
1193096780
1250690888
132b609286
141a035a88
1510d222e2
hexac765e8

180839912 has 16 divisors (see below), whose sum is σ = 369900000. Its totient is φ = 82199920.

The previous prime is 180839903. The next prime is 180839933. The reversal of 180839912 is 219938081.

It is a self number, because there is not a number n which added to its sum of digits gives 180839912.

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, 1027412 + ... + 1027587.

It is an arithmetic number, because the mean of its divisors is an integer number (23118750).

Almost surely, 2180839912 is an apocalyptic number.

It is an amenable number.

180839912 is an abundant number, since it is smaller than the sum of its proper divisors (189060088).

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

180839912 is a wasteful number, since it uses less digits than its factorization.

180839912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055016 (or 2055012 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 180839912 is about 13447.6731072703. The cubic root of 180839912 is about 565.4984631812.

The spelling of 180839912 in words is "one hundred eighty million, eight hundred thirty-nine thousand, nine hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 2054999 4109998 8219996 16439992 22604989 45209978 90419956 180839912