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142932123 = 3247337901
BaseRepresentation
bin10001000010011…
…11100010011011
3100221221201000100
420201033202123
5243042311443
622103310443
73353621505
oct1041174233
9327851010
10142932123
1173755024
123ba4b423
13237c5b29
1414da8d75
15c8353d3
hex884f89b

142932123 has 12 divisors (see below), whose sum is σ = 210850848. Its totient is φ = 93260400.

The previous prime is 142932121. The next prime is 142932197. The reversal of 142932123 is 321239241.

It is a happy number.

It is not a de Polignac number, because 142932123 - 21 = 142932121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142932121) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 168528 + ... + 169373.

It is an arithmetic number, because the mean of its divisors is an integer number (17570904).

Almost surely, 2142932123 is an apocalyptic number.

142932123 is a deficient number, since it is larger than the sum of its proper divisors (67918725).

142932123 is a wasteful number, since it uses less digits than its factorization.

142932123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337954 (or 337951 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 142932123 is about 11955.4223262919. The cubic root of 142932123 is about 522.8494010000.

The spelling of 142932123 in words is "one hundred forty-two million, nine hundred thirty-two thousand, one hundred twenty-three".

Divisors: 1 3 9 47 141 423 337901 1013703 3041109 15881347 47644041 142932123