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142432102 = 279211411
BaseRepresentation
bin10000111110101…
…01011101100110
3100221000022010001
420133111131212
5242430311402
622044451514
73346436641
oct1037253546
9327008101
10142432102
117344338a
123b849b9a
132367c367
1414cb8a58
15c787187
hex87d5766

142432102 has 12 divisors (see below), whose sum is σ = 216405756. Its totient is φ = 70308420.

The previous prime is 142432097. The next prime is 142432159. The reversal of 142432102 is 201234241.

It is a self number, because there is not a number n which added to its sum of digits gives 142432102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6777 + ... + 18187.

It is an arithmetic number, because the mean of its divisors is an integer number (18033813).

Almost surely, 2142432102 is an apocalyptic number.

142432102 is a deficient number, since it is larger than the sum of its proper divisors (73973654).

142432102 is an equidigital number, since it uses as much as digits as its factorization.

142432102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11571 (or 11492 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 142432102 is about 11934.4921131986. The cubic root of 142432102 is about 522.2389920641.

Adding to 142432102 its reverse (201234241), we get a palindrome (343666343).

The spelling of 142432102 in words is "one hundred forty-two million, four hundred thirty-two thousand, one hundred two".

Divisors: 1 2 79 158 6241 11411 12482 22822 901469 1802938 71216051 142432102