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120423992 = 2313289071
BaseRepresentation
bin1110010110110…
…00011000111000
322101121011122212
413023120120320
5221312031432
615541034252
72661405233
oct713303070
9271534585
10120423992
1161a81367
12343b5988
131bc44c00
1411dca41a
15a88b2b2
hex72d8638

120423992 has 24 divisors (see below), whose sum is σ = 244502640. Its totient is φ = 55579680.

The previous prime is 120423983. The next prime is 120423997. The reversal of 120423992 is 299324021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120423997) 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 5 ways as a sum of consecutive naturals, for example, 43184 + ... + 45887.

It is an arithmetic number, because the mean of its divisors is an integer number (10187610).

Almost surely, 2120423992 is an apocalyptic number.

It is an amenable number.

120423992 is an abundant number, since it is smaller than the sum of its proper divisors (124078648).

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

120423992 is a wasteful number, since it uses less digits than its factorization.

120423992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89103 (or 89086 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 120423992 is about 10973.7865844019. The cubic root of 120423992 is about 493.8226510197.

The spelling of 120423992 in words is "one hundred twenty million, four hundred twenty-three thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 13 26 52 104 169 338 676 1352 89071 178142 356284 712568 1157923 2315846 4631692 9263384 15052999 30105998 60211996 120423992