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180481142 = 28910110039
BaseRepresentation
bin10101100000111…
…10110001110110
3110120121101120202
422300132301312
5332200344032
625524200502
74321031042
oct1260366166
9416541522
10180481142
1192971176
1250539132
132b511b9a
1419d81022
1510ca0d62
hexac1ec76

180481142 has 16 divisors (see below), whose sum is σ = 276501600. Its totient is φ = 88334400.

The previous prime is 180481141. The next prime is 180481151. The reversal of 180481142 is 241184081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180481141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12959 + ... + 22997.

It is an arithmetic number, because the mean of its divisors is an integer number (17281350).

Almost surely, 2180481142 is an apocalyptic number.

180481142 is a deficient number, since it is larger than the sum of its proper divisors (96020458).

180481142 is a wasteful number, since it uses less digits than its factorization.

180481142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10231.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 180481142 is about 13434.3270021241. The cubic root of 180481142 is about 565.1242496992.

The spelling of 180481142 in words is "one hundred eighty million, four hundred eighty-one thousand, one hundred forty-two".

Divisors: 1 2 89 101 178 202 8989 10039 17978 20078 893471 1013939 1786942 2027878 90240571 180481142