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142925465 = 528585093
BaseRepresentation
bin10001000010011…
…01111010011001
3100221221100212202
420201031322121
5243042103330
622103215545
73353563214
oct1041157231
9327840782
10142925465
1173750021
123ba475b5
13237c2aa7
1414da677b
15c833445
hex884de99

142925465 has 4 divisors (see below), whose sum is σ = 171510564. Its totient is φ = 114340368.

The previous prime is 142925441. The next prime is 142925479. The reversal of 142925465 is 564529241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 564529241 = 4313128587.

It can be written as a sum of positive squares in 2 ways, for example, as 77299264 + 65626201 = 8792^2 + 8101^2 .

It is a cyclic number.

It is not a de Polignac number, because 142925465 - 26 = 142925401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14292542 + ... + 14292551.

It is an arithmetic number, because the mean of its divisors is an integer number (42877641).

Almost surely, 2142925465 is an apocalyptic number.

It is an amenable number.

142925465 is a deficient number, since it is larger than the sum of its proper divisors (28585099).

142925465 is an equidigital number, since it uses as much as digits as its factorization.

142925465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28585098.

The product of its digits is 86400, while the sum is 38.

The square root of 142925465 is about 11955.1438719908. The cubic root of 142925465 is about 522.8412824953.

The spelling of 142925465 in words is "one hundred forty-two million, nine hundred twenty-five thousand, four hundred sixty-five".

Divisors: 1 5 28585093 142925465