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142707717 = 335285471
BaseRepresentation
bin10001000000110…
…00110000000101
3100221112022012000
420200120300011
5243013121332
622054415513
73351665325
oct1040306005
9327468160
10142707717
1173611469
123b961599
1323747949
1414d4b285
15c7ddb7c
hex8818c05

142707717 has 8 divisors (see below), whose sum is σ = 211418880. Its totient is φ = 95138460.

The previous prime is 142707713. The next prime is 142707737. The reversal of 142707717 is 717707241.

It is not a de Polignac number, because 142707717 - 22 = 142707713 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142707713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2642709 + ... + 2642762.

It is an arithmetic number, because the mean of its divisors is an integer number (26427360).

Almost surely, 2142707717 is an apocalyptic number.

It is an amenable number.

142707717 is a deficient number, since it is larger than the sum of its proper divisors (68711163).

142707717 is an equidigital number, since it uses as much as digits as its factorization.

142707717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5285480 (or 5285474 counting only the distinct ones).

The product of its (nonzero) digits is 19208, while the sum is 36.

The square root of 142707717 is about 11946.0335258194. The cubic root of 142707717 is about 522.5756300251.

The spelling of 142707717 in words is "one hundred forty-two million, seven hundred seven thousand, seven hundred seventeen".

Divisors: 1 3 9 27 5285471 15856413 47569239 142707717