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142188152 = 2399717827
BaseRepresentation
bin10000111100110…
…01111001111000
3100220112220110212
420132121321320
5242400010102
622035330252
73344402501
oct1036317170
9326486425
10142188152
1173297077
123b750988
13235c5302
1414c53ba8
15c739c52
hex8799e78

142188152 has 16 divisors (see below), whose sum is σ = 266885160. Its totient is φ = 71018784.

The previous prime is 142188121. The next prime is 142188157. The reversal of 142188152 is 251881241.

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 3 ways as a sum of consecutive naturals, for example, 938 + ... + 16889.

Almost surely, 2142188152 is an apocalyptic number.

It is an amenable number.

142188152 is a deficient number, since it is larger than the sum of its proper divisors (124697008).

142188152 is a wasteful number, since it uses less digits than its factorization.

142188152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18830 (or 18826 counting only the distinct ones).

The product of its digits is 5120, while the sum is 32.

The square root of 142188152 is about 11924.2673569490. The cubic root of 142188152 is about 521.9406674488.

The spelling of 142188152 in words is "one hundred forty-two million, one hundred eighty-eight thousand, one hundred fifty-two".

Divisors: 1 2 4 8 997 1994 3988 7976 17827 35654 71308 142616 17773519 35547038 71094076 142188152