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142075137 = 3175215347
BaseRepresentation
bin10000111011111…
…10010100000001
3100220100011110010
420131332110001
5242332401022
622033055133
73343422141
oct1035762401
9326304403
10142075137
117321a176
123b6b74a9
1323585a39
1414c24921
15c71650c
hex877e501

142075137 has 16 divisors (see below), whose sum is σ = 200999232. Its totient is φ = 88957440.

The previous prime is 142075121. The next prime is 142075151. The reversal of 142075137 is 731570241.

It is not a de Polignac number, because 142075137 - 24 = 142075121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142075177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23898 + ... + 29244.

It is an arithmetic number, because the mean of its divisors is an integer number (12562452).

Almost surely, 2142075137 is an apocalyptic number.

142075137 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

142075137 is a deficient number, since it is larger than the sum of its proper divisors (58924095).

142075137 is a wasteful number, since it uses less digits than its factorization.

142075137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5888.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 142075137 is about 11919.5275493620. The cubic root of 142075137 is about 521.8023465953.

The spelling of 142075137 in words is "one hundred forty-two million, seventy-five thousand, one hundred thirty-seven".

Divisors: 1 3 17 51 521 1563 5347 8857 16041 26571 90899 272697 2785787 8357361 47358379 142075137