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142188153 = 3171927723
BaseRepresentation
bin10000111100110…
…01111001111001
3100220112220110220
420132121321321
5242400010103
622035330253
73344402502
oct1036317171
9326486426
10142188153
1173297078
123b750989
13235c5303
1414c53ba9
15c739c53
hex8799e79

142188153 has 24 divisors (see below), whose sum is σ = 211884768. Its totient is φ = 84509568.

The previous prime is 142188121. The next prime is 142188157. The reversal of 142188153 is 351881241.

It is not a de Polignac number, because 142188153 - 25 = 142188121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142188157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14550 + ... + 22272.

It is an arithmetic number, because the mean of its divisors is an integer number (8828532).

Almost surely, 2142188153 is an apocalyptic number.

It is an amenable number.

142188153 is a deficient number, since it is larger than the sum of its proper divisors (69696615).

142188153 is a wasteful number, since it uses less digits than its factorization.

142188153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7781 (or 7762 counting only the distinct ones).

The product of its digits is 7680, while the sum is 33.

The square root of 142188153 is about 11924.2673988803. The cubic root of 142188153 is about 521.9406686724.

The spelling of 142188153 in words is "one hundred forty-two million, one hundred eighty-eight thousand, one hundred fifty-three".

Divisors: 1 3 17 19 51 57 323 361 969 1083 6137 7723 18411 23169 131291 146737 393873 440211 2494529 2788003 7483587 8364009 47396051 142188153