Search a number
180130445 = 5114437393
BaseRepresentation
bin10101011110010…
…01001010001101
3110112221120111222
422233021022031
5332103133240
625512453125
74315040435
oct1257111215
9415846458
10180130445
1192751740
12503aa1a5
132b41b381
1419ccd2c5
1510c31eb5
hexabc928d

180130445 has 16 divisors (see below), whose sum is σ = 236371392. Its totient is φ = 130690560.

The previous prime is 180130427. The next prime is 180130451. The reversal of 180130445 is 544031081.

180130445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 180130445 - 210 = 180129421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20669 + ... + 28061.

It is an arithmetic number, because the mean of its divisors is an integer number (14773212).

Almost surely, 2180130445 is an apocalyptic number.

It is an amenable number.

180130445 is a deficient number, since it is larger than the sum of its proper divisors (56240947).

180130445 is a wasteful number, since it uses less digits than its factorization.

180130445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7852.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 180130445 is about 13421.2683826828. The cubic root of 180130445 is about 564.7579771106.

The spelling of 180130445 in words is "one hundred eighty million, one hundred thirty thousand, four hundred forty-five".