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180150804 = 2234556021
BaseRepresentation
bin10101011110011…
…10001000010100
3110112222121110000
422233032020110
5332104311204
625513131300
74315154001
oct1257161024
9415877400
10180150804
1192765a69
12503b9b30
132b427712
1419cd68a8
1510c38039
hexabce214

180150804 has 30 divisors (see below), whose sum is σ = 470950634. Its totient is φ = 60050160.

The previous prime is 180150767. The next prime is 180150809. The reversal of 180150804 is 408051081.

It can be written as a sum of positive squares in only one way, i.e., 165173904 + 14976900 = 12852^2 + 3870^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180150809) 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 9 ways as a sum of consecutive naturals, for example, 277687 + ... + 278334.

Almost surely, 2180150804 is an apocalyptic number.

It is an amenable number.

180150804 is an abundant number, since it is smaller than the sum of its proper divisors (290799830).

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

180150804 is a wasteful number, since it uses less digits than its factorization.

180150804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556037 (or 556026 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 180150804 is about 13422.0268216093. The cubic root of 180150804 is about 564.7792533113.

The spelling of 180150804 in words is "one hundred eighty million, one hundred fifty thousand, eight hundred four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 556021 1112042 1668063 2224084 3336126 5004189 6672252 10008378 15012567 20016756 30025134 45037701 60050268 90075402 180150804