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142725432 = 2335946893
BaseRepresentation
bin10001000000111…
…01000100111000
3100221120012111010
420200131010320
5243014203212
622055033520
73352101063
oct1040350470
9327505433
10142725432
1173623803
123b96b8a0
1323752a25
1414d538da
15c7e403c
hex881d138

142725432 has 16 divisors (see below), whose sum is σ = 356813640. Its totient is φ = 47575136.

The previous prime is 142725431. The next prime is 142725437. The reversal of 142725432 is 234527241.

It is a self number, because there is not a number n which added to its sum of digits gives 142725432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142725431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2973423 + ... + 2973470.

Almost surely, 2142725432 is an apocalyptic number.

142725432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142725432 is an abundant number, since it is smaller than the sum of its proper divisors (214088208).

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

142725432 is a wasteful number, since it uses less digits than its factorization.

142725432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5946902 (or 5946898 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 142725432 is about 11946.7749623068. The cubic root of 142725432 is about 522.5972524116.

The spelling of 142725432 in words is "one hundred forty-two million, seven hundred twenty-five thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 5946893 11893786 17840679 23787572 35681358 47575144 71362716 142725432