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142286025 = 3527271021
BaseRepresentation
bin10000111101100…
…01110011001001
3100220201212201210
420132301303021
5242411123100
622041403333
73345261030
oct1036616311
9326655653
10142286025
1173353662
123b799549
132362aa1b
1414c7b717
15c758c50
hex87b1cc9

142286025 has 24 divisors (see below), whose sum is σ = 268853824. Its totient is φ = 65044800.

The previous prime is 142286017. The next prime is 142286029. The reversal of 142286025 is 520682241.

142286025 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 142286025 - 23 = 142286017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142285983 and 142286001.

It is not an unprimeable number, because it can be changed into a prime (142286029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134986 + ... + 136035.

Almost surely, 2142286025 is an apocalyptic number.

142286025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142286025 is a deficient number, since it is larger than the sum of its proper divisors (126567799).

142286025 is a wasteful number, since it uses less digits than its factorization.

142286025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271041 (or 271036 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 142286025 is about 11928.3705928345. The cubic root of 142286025 is about 522.0603965583.

The spelling of 142286025 in words is "one hundred forty-two million, two hundred eighty-six thousand, twenty-five".

Divisors: 1 3 5 7 15 21 25 35 75 105 175 525 271021 813063 1355105 1897147 4065315 5691441 6775525 9485735 20326575 28457205 47428675 142286025