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142427118 = 231371631063
BaseRepresentation
bin10000111110101…
…00001111101110
3100221000001021110
420133110033232
5242430131433
622044412450
73346416261
oct1037241756
9327001243
10142427118
117343a669
123b847126
132367a002
1414cb6cd8
15c785963
hex87d43ee

142427118 has 32 divisors (see below), whose sum is σ = 288965376. Its totient is φ = 46795968.

The previous prime is 142427111. The next prime is 142427141. The reversal of 142427118 is 811724241.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142427111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133455 + ... + 134517.

It is an arithmetic number, because the mean of its divisors is an integer number (9030168).

Almost surely, 2142427118 is an apocalyptic number.

142427118 is an abundant number, since it is smaller than the sum of its proper divisors (146538258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142427118 is a wasteful number, since it uses less digits than its factorization.

142427118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368.

The product of its digits is 3584, while the sum is 30.

The square root of 142427118 is about 11934.2833048323. The cubic root of 142427118 is about 522.2329005781.

The spelling of 142427118 in words is "one hundred forty-two million, four hundred twenty-seven thousand, one hundred eighteen".

Divisors: 1 2 3 6 137 163 274 326 411 489 822 978 1063 2126 3189 6378 22331 44662 66993 133986 145631 173269 291262 346538 436893 519807 873786 1039614 23737853 47475706 71213559 142427118