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142612051 = 603723623
BaseRepresentation
bin10001000000000…
…01011001010011
3100221100102221211
420200001121103
5243002041201
622052400551
73351116401
oct1040013123
9327312854
10142612051
11735565aa
123b916157
132371323a
1414d24471
15c7c0651
hex8801653

142612051 has 4 divisors (see below), whose sum is σ = 142641712. Its totient is φ = 142582392.

The previous prime is 142612033. The next prime is 142612073. The reversal of 142612051 is 150216241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150216241 = 721459463.

It is a cyclic number.

It is not a de Polignac number, because 142612051 - 223 = 134223443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142612021) 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, 5775 + ... + 17848.

It is an arithmetic number, because the mean of its divisors is an integer number (35660428).

Almost surely, 2142612051 is an apocalyptic number.

142612051 is a deficient number, since it is larger than the sum of its proper divisors (29661).

142612051 is an equidigital number, since it uses as much as digits as its factorization.

142612051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29660.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 142612051 is about 11942.0287639915. The cubic root of 142612051 is about 522.4588321006.

Adding to 142612051 its reverse (150216241), we get a palindrome (292828292).

The spelling of 142612051 in words is "one hundred forty-two million, six hundred twelve thousand, fifty-one".

Divisors: 1 6037 23623 142612051