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142392575 = 5213438131
BaseRepresentation
bin10000111110010…
…11110011111111
3100220221021220002
420133023303333
5242423030300
622043544515
73346213463
oct1037136377
9326837802
10142392575
1173416716
123b82b13b
1323667380
1414ca84a3
15c77a5d5
hex87cbcff

142392575 has 12 divisors (see below), whose sum is σ = 190149288. Its totient is φ = 105151200.

The previous prime is 142392571. The next prime is 142392577. The reversal of 142392575 is 575293241.

It is not a de Polignac number, because 142392575 - 22 = 142392571 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142392571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218741 + ... + 219390.

It is an arithmetic number, because the mean of its divisors is an integer number (15845774).

Almost surely, 2142392575 is an apocalyptic number.

142392575 is a deficient number, since it is larger than the sum of its proper divisors (47756713).

142392575 is a wasteful number, since it uses less digits than its factorization.

142392575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438154 (or 438149 counting only the distinct ones).

The product of its digits is 75600, while the sum is 38.

The square root of 142392575 is about 11932.8359998787. The cubic root of 142392575 is about 522.1906779313.

The spelling of 142392575 in words is "one hundred forty-two million, three hundred ninety-two thousand, five hundred seventy-five".

Divisors: 1 5 13 25 65 325 438131 2190655 5695703 10953275 28478515 142392575