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142724164 = 221110929759
BaseRepresentation
bin10001000000111…
…00110001000100
3100221120010202011
420200130301010
5243014133124
622055024004
73352064302
oct1040346104
9327503664
10142724164
1173622860
123b96b004
132375228b
1414d53272
15c7e3994
hex881cc44

142724164 has 24 divisors (see below), whose sum is σ = 274982400. Its totient is φ = 64277280.

The previous prime is 142724159. The next prime is 142724171. The reversal of 142724164 is 461427241.

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, 10084 + ... + 19675.

It is an arithmetic number, because the mean of its divisors is an integer number (11457600).

Almost surely, 2142724164 is an apocalyptic number.

It is an amenable number.

142724164 is a deficient number, since it is larger than the sum of its proper divisors (132258236).

142724164 is a wasteful number, since it uses less digits than its factorization.

142724164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29883 (or 29881 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 142724164 is about 11946.7218934735. The cubic root of 142724164 is about 522.5957047891.

The spelling of 142724164 in words is "one hundred forty-two million, seven hundred twenty-four thousand, one hundred sixty-four".

Divisors: 1 2 4 11 22 44 109 218 436 1199 2398 4796 29759 59518 119036 327349 654698 1309396 3243731 6487462 12974924 35681041 71362082 142724164