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142425937 = 511927823
BaseRepresentation
bin10000111110100…
…11111101010001
3100220222222122201
420133103331101
5242430112222
622044403201
73346412653
oct1037237521
9326888581
10142425937
1173439795
123b846501
1323679604
1414cb66d3
15c785427
hex87d3f51

142425937 has 4 divisors (see below), whose sum is σ = 142458880. Its totient is φ = 142392996.

The previous prime is 142425917. The next prime is 142425961. The reversal of 142425937 is 739524241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142425937 - 219 = 141901649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142425896 and 142425905.

It is not an unprimeable number, because it can be changed into a prime (142425917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8793 + ... + 19030.

It is an arithmetic number, because the mean of its divisors is an integer number (35614720).

Almost surely, 2142425937 is an apocalyptic number.

It is an amenable number.

142425937 is a deficient number, since it is larger than the sum of its proper divisors (32943).

142425937 is an equidigital number, since it uses as much as digits as its factorization.

142425937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32942.

The product of its digits is 60480, while the sum is 37.

The square root of 142425937 is about 11934.2338254284. The cubic root of 142425937 is about 522.2314571292.

The spelling of 142425937 in words is "one hundred forty-two million, four hundred twenty-five thousand, nine hundred thirty-seven".

Divisors: 1 5119 27823 142425937