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142920084 = 22331737571
BaseRepresentation
bin10001000010011…
…00100110010100
3100221221002111110
420201030212110
5243041420314
622103135020
73353541426
oct1041144624
9327832443
10142920084
1173746a7a
123ba44470
13237c04c8
1414da4816
15c831a59
hex884c994

142920084 has 24 divisors (see below), whose sum is σ = 334541088. Its totient is φ = 47488480.

The previous prime is 142920079. The next prime is 142920101. The reversal of 142920084 is 480029241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14982 + ... + 22589.

It is an arithmetic number, because the mean of its divisors is an integer number (13939212).

Almost surely, 2142920084 is an apocalyptic number.

It is an amenable number.

142920084 is an abundant number, since it is smaller than the sum of its proper divisors (191621004).

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

142920084 is a wasteful number, since it uses less digits than its factorization.

142920084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37895 (or 37893 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 142920084 is about 11954.9188203015. The cubic root of 142920084 is about 522.8347209301.

The spelling of 142920084 in words is "one hundred forty-two million, nine hundred twenty thousand, eighty-four".

Divisors: 1 2 3 4 6 12 317 634 951 1268 1902 3804 37571 75142 112713 150284 225426 450852 11910007 23820014 35730021 47640028 71460042 142920084