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142510404 = 22322075381
BaseRepresentation
bin10000111111010…
…00100101000100
3100221011021112010
420133220211010
5242440313104
622050254220
73350214141
oct1037504504
9327137463
10142510404
11734971a3
123b887370
13236a8baa
1414cd93c8
15c7a0489
hex87e8944

142510404 has 24 divisors (see below), whose sum is σ = 332736768. Its totient is φ = 47473120.

The previous prime is 142510397. The next prime is 142510409. The reversal of 142510404 is 404015241.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (142510409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23794 + ... + 29174.

It is an arithmetic number, because the mean of its divisors is an integer number (13864032).

Almost surely, 2142510404 is an apocalyptic number.

It is an amenable number.

142510404 is an abundant number, since it is smaller than the sum of its proper divisors (190226364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142510404 is a wasteful number, since it uses less digits than its factorization.

142510404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7595 (or 7593 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 142510404 is about 11937.7721539657. The cubic root of 142510404 is about 522.3346747690.

Adding to 142510404 its reverse (404015241), we get a palindrome (546525645).

The spelling of 142510404 in words is "one hundred forty-two million, five hundred ten thousand, four hundred four".

Divisors: 1 2 3 4 6 12 2207 4414 5381 6621 8828 10762 13242 16143 21524 26484 32286 64572 11875867 23751734 35627601 47503468 71255202 142510404