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142192130 = 2514219213
BaseRepresentation
bin10000111100110…
…10111000000010
3100220120002221012
420132122320002
5242400122010
622035400522
73344420213
oct1036327002
9326502835
10142192130
117329a063
123b753142
13235c7072
1414c5540a
15c73b005
hex879ae02

142192130 has 8 divisors (see below), whose sum is σ = 255945852. Its totient is φ = 56876848.

The previous prime is 142192129. The next prime is 142192153. The reversal of 142192130 is 31291241.

It can be written as a sum of positive squares in 2 ways, for example, as 142014889 + 177241 = 11917^2 + 421^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 142192096 and 142192105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7109597 + ... + 7109616.

Almost surely, 2142192130 is an apocalyptic number.

142192130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142192130 is a deficient number, since it is larger than the sum of its proper divisors (113753722).

142192130 is a wasteful number, since it uses less digits than its factorization.

142192130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14219220.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 142192130 is about 11924.4341584832. The cubic root of 142192130 is about 521.9455348506.

The spelling of 142192130 in words is "one hundred forty-two million, one hundred ninety-two thousand, one hundred thirty".

Divisors: 1 2 5 10 14219213 28438426 71096065 142192130