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180180068 = 222313611439
BaseRepresentation
bin10101011110101…
…01010001100100
3110120001002120212
422233111101210
5332111230233
625513514552
74315335215
oct1257252144
9416032525
10180180068
1192785a52
1250412a58
132b437b33
1419d0340c
1510c41a48
hexabd5464

180180068 has 24 divisors (see below), whose sum is σ = 329495040. Its totient is φ = 86049920.

The previous prime is 180180053. The next prime is 180180073. The reversal of 180180068 is 860081081.

It is a happy number.

180180068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124493 + ... + 125931.

It is an arithmetic number, because the mean of its divisors is an integer number (13728960).

Almost surely, 2180180068 is an apocalyptic number.

It is an amenable number.

180180068 is a deficient number, since it is larger than the sum of its proper divisors (149314972).

180180068 is a wasteful number, since it uses less digits than its factorization.

180180068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2827 (or 2825 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 32.

The square root of 180180068 is about 13423.1169256622. The cubic root of 180180068 is about 564.8098328866.

The spelling of 180180068 in words is "one hundred eighty million, one hundred eighty thousand, sixty-eight".

Divisors: 1 2 4 23 46 92 1361 1439 2722 2878 5444 5756 31303 33097 62606 66194 125212 132388 1958479 3916958 7833916 45045017 90090034 180180068