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142580837 = 722909813
BaseRepresentation
bin10000111111110…
…01110001100101
3100221021212010202
420133321301211
5243000041322
622052000245
73350626400
oct1037716145
9327255122
10142580837
1173535103
123b900085
1323701c79
1414d16d37
15c7b6292
hex87f9c65

142580837 has 6 divisors (see below), whose sum is σ = 165859398. Its totient is φ = 122212104.

The previous prime is 142580833. The next prime is 142580843. The reversal of 142580837 is 738085241.

It can be written as a sum of positive squares in only one way, i.e., 142110241 + 470596 = 11921^2 + 686^2 .

It is not a de Polignac number, because 142580837 - 22 = 142580833 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 142580837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142580833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1454858 + ... + 1454955.

It is an arithmetic number, because the mean of its divisors is an integer number (27643233).

Almost surely, 2142580837 is an apocalyptic number.

It is an amenable number.

142580837 is a deficient number, since it is larger than the sum of its proper divisors (23278561).

142580837 is an equidigital number, since it uses as much as digits as its factorization.

142580837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909827 (or 2909820 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 142580837 is about 11940.7217956035. The cubic root of 142580837 is about 522.4207118533.

The spelling of 142580837 in words is "one hundred forty-two million, five hundred eighty thousand, eight hundred thirty-seven".

Divisors: 1 7 49 2909813 20368691 142580837