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142542032 = 248908877
BaseRepresentation
bin10000111111100…
…00010011010000
3100221012212220112
420133300103100
5242442321112
622051100452
73350405303
oct1037602320
9327185815
10142542032
1173508a36
123b8a1728
13236ba3c9
1414d06b3a
15c7a9a22
hex87f04d0

142542032 has 10 divisors (see below), whose sum is σ = 276175218. Its totient is φ = 71271008.

The previous prime is 142542013. The next prime is 142542079. The reversal of 142542032 is 230245241.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 78925456 + 63616576 = 8884^2 + 7976^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142541989 and 142542007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4454423 + ... + 4454454.

Almost surely, 2142542032 is an apocalyptic number.

It is an amenable number.

142542032 is a deficient number, since it is larger than the sum of its proper divisors (133633186).

142542032 is an equidigital number, since it uses as much as digits as its factorization.

142542032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8908885 (or 8908879 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 142542032 is about 11939.0967832579. The cubic root of 142542032 is about 522.3733133025.

Adding to 142542032 its reverse (230245241), we get a palindrome (372787273).

The spelling of 142542032 in words is "one hundred forty-two million, five hundred forty-two thousand, thirty-two".

Divisors: 1 2 4 8 16 8908877 17817754 35635508 71271016 142542032