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142075761 = 32310971877
BaseRepresentation
bin10000111011111…
…10011101110001
3100220100012022020
420131332131301
5242332411021
622033102053
73343424022
oct1035763561
9326305266
10142075761
117321a693
123b6b7929
13235860c9
1414c24c49
15c7167c6
hex877e771

142075761 has 16 divisors (see below), whose sum is σ = 197956224. Its totient is φ = 90468224.

The previous prime is 142075729. The next prime is 142075763. The reversal of 142075761 is 167570241.

It is a cyclic number.

It is not a de Polignac number, because 142075761 - 25 = 142075729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142075763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74755 + ... + 76631.

It is an arithmetic number, because the mean of its divisors is an integer number (12372264).

Almost surely, 2142075761 is an apocalyptic number.

It is an amenable number.

142075761 is a deficient number, since it is larger than the sum of its proper divisors (55880463).

142075761 is a wasteful number, since it uses less digits than its factorization.

142075761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 142075761 is about 11919.5537248674. The cubic root of 142075761 is about 521.8031105201.

The spelling of 142075761 in words is "one hundred forty-two million, seventy-five thousand, seven hundred sixty-one".

Divisors: 1 3 23 69 1097 1877 3291 5631 25231 43171 75693 129513 2059069 6177207 47358587 142075761