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180472086 = 23216636029
BaseRepresentation
bin10101100000111…
…00100100010110
3110120120221011100
422300130210112
5332200101321
625524050530
74320662454
oct1260344426
9416527140
10180472086
1192965393
1250533a46
132b50aa22
1419d7b9d4
1510c9d326
hexac1c916

180472086 has 24 divisors (see below), whose sum is σ = 391322880. Its totient is φ = 60111216.

The previous prime is 180472079. The next prime is 180472087. The reversal of 180472086 is 680274081.

180472086 is a `hidden beast` number, since 180 + 472 + 0 + 8 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 180472086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180472087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26920 + ... + 32948.

It is an arithmetic number, because the mean of its divisors is an integer number (16305120).

Almost surely, 2180472086 is an apocalyptic number.

180472086 is an abundant number, since it is smaller than the sum of its proper divisors (210850794).

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

180472086 is a wasteful number, since it uses less digits than its factorization.

180472086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7700 (or 7697 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 180472086 is about 13433.9899508672. The cubic root of 180472086 is about 565.1147974637.

The spelling of 180472086 in words is "one hundred eighty million, four hundred seventy-two thousand, eighty-six".

Divisors: 1 2 3 6 9 18 1663 3326 4989 6029 9978 12058 14967 18087 29934 36174 54261 108522 10026227 20052454 30078681 60157362 90236043 180472086