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180130156 = 22187324043
BaseRepresentation
bin10101011110010…
…01000101101100
3110112221120010021
422233021011230
5332103131111
625512451524
74315036543
oct1257110554
9415846107
10180130156
11927514a8
12503a9ba4
132b41b1bb
1419ccd15a
1510c31d71
hexabc916c

180130156 has 12 divisors (see below), whose sum is σ = 315409192. Its totient is φ = 90013248.

The previous prime is 180130151. The next prime is 180130157. The reversal of 180130156 is 651031081.

180130156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 180130156.

It is not an unprimeable number, because it can be changed into a prime (180130151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4530 + ... + 19513.

Almost surely, 2180130156 is an apocalyptic number.

It is an amenable number.

180130156 is a deficient number, since it is larger than the sum of its proper divisors (135279036).

180130156 is a wasteful number, since it uses less digits than its factorization.

180130156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25920 (or 25918 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 180130156 is about 13421.2576161849. The cubic root of 180130156 is about 564.7576750792.

The spelling of 180130156 in words is "one hundred eighty million, one hundred thirty thousand, one hundred fifty-six".

Divisors: 1 2 4 1873 3746 7492 24043 48086 96172 45032539 90065078 180130156