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142516025 = 5219329537
BaseRepresentation
bin10000111111010…
…01111100111001
3100221011120020022
420133221330321
5242441003100
622050340225
73350236421
oct1037517471
9327146208
10142516025
11734a0443
123b88a675
13236ab612
1414cdb481
15c7a1e85
hex87e9f39

142516025 has 12 divisors (see below), whose sum is σ = 177641532. Its totient is φ = 113418240.

The previous prime is 142516019. The next prime is 142516057. The reversal of 142516025 is 520615241.

It can be written as a sum of positive squares in 6 ways, for example, as 52113961 + 90402064 = 7219^2 + 9508^2 .

It is not a de Polignac number, because 142516025 - 226 = 75407161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142515985 and 142516003.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9944 + ... + 19593.

It is an arithmetic number, because the mean of its divisors is an integer number (14803461).

Almost surely, 2142516025 is an apocalyptic number.

It is an amenable number.

142516025 is a deficient number, since it is larger than the sum of its proper divisors (35125507).

142516025 is a wasteful number, since it uses less digits than its factorization.

142516025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29740 (or 29735 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 142516025 is about 11938.0075808319. The cubic root of 142516025 is about 522.3415421146.

The spelling of 142516025 in words is "one hundred forty-two million, five hundred sixteen thousand, twenty-five".

Divisors: 1 5 25 193 965 4825 29537 147685 738425 5700641 28503205 142516025