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142517125 = 531140137
BaseRepresentation
bin10000111111010…
…10001110000101
3100221011121202001
420133222032011
5242441022000
622050345301
73350242552
oct1037521605
9327147661
10142517125
11734a1253
123b88b231
13236abc7a
1414cdba29
15c7a246a
hex87ea385

142517125 has 8 divisors (see below), whose sum is σ = 177861528. Its totient is φ = 114013600.

The previous prime is 142517101. The next prime is 142517191. The reversal of 142517125 is 521715241.

142517125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12967201 + 129549924 = 3601^2 + 11382^2 .

It is not a de Polignac number, because 142517125 - 223 = 134128517 is a prime.

It is a super-2 number, since 2×1425171252 = 40622261836531250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142517093 and 142517102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569944 + ... + 570193.

It is an arithmetic number, because the mean of its divisors is an integer number (22232691).

Almost surely, 2142517125 is an apocalyptic number.

It is an amenable number.

142517125 is a deficient number, since it is larger than the sum of its proper divisors (35344403).

142517125 is an equidigital number, since it uses as much as digits as its factorization.

142517125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140152 (or 1140142 counting only the distinct ones).

The product of its digits is 2800, while the sum is 28.

The square root of 142517125 is about 11938.0536520825. The cubic root of 142517125 is about 522.3428859967.

It can be divided in two parts, 14251 and 7125, that multiplied together give a triangular number (101538375 = T14250).

The spelling of 142517125 in words is "one hundred forty-two million, five hundred seventeen thousand, one hundred twenty-five".

Divisors: 1 5 25 125 1140137 5700685 28503425 142517125