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142145575 = 52111339761
BaseRepresentation
bin10000111100011…
…11100000100111
3100220110202001221
420132033200213
5242342124300
622034401211
73344134405
oct1036174047
9326422057
10142145575
1173268090
123b730207
13235abb10
1414c42475
15c72c31a
hex878f827

142145575 has 24 divisors (see below), whose sum is σ = 207080496. Its totient is φ = 95424000.

The previous prime is 142145561. The next prime is 142145599. The reversal of 142145575 is 575541241.

142145575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142145575 - 29 = 142145063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142145575.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16306 + ... + 23455.

It is an arithmetic number, because the mean of its divisors is an integer number (8628354).

Almost surely, 2142145575 is an apocalyptic number.

142145575 is a deficient number, since it is larger than the sum of its proper divisors (64934921).

142145575 is a wasteful number, since it uses less digits than its factorization.

142145575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39795 (or 39790 counting only the distinct ones).

The product of its digits is 28000, while the sum is 34.

The square root of 142145575 is about 11922.4819144338. The cubic root of 142145575 is about 521.8885653902. Note that the first 3 decimals are identical.

The spelling of 142145575 in words is "one hundred forty-two million, one hundred forty-five thousand, five hundred seventy-five".

Divisors: 1 5 11 13 25 55 65 143 275 325 715 3575 39761 198805 437371 516893 994025 2186855 2584465 5685823 10934275 12922325 28429115 142145575