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120120423 = 340040141
BaseRepresentation
bin1110010100011…
…10010001100111
322101000202020120
413022032101213
5221222323143
615530333023
72656002213
oct712162147
9271022216
10120120423
1161894285
123428a173
131bb69997
1411d4b943
15a82b383
hex728e467

120120423 has 4 divisors (see below), whose sum is σ = 160160568. Its totient is φ = 80080280.

The previous prime is 120120293. The next prime is 120120431. The reversal of 120120423 is 324021021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120120423 - 29 = 120119911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120120433) 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, 20020068 + ... + 20020073.

It is an arithmetic number, because the mean of its divisors is an integer number (40040142).

Almost surely, 2120120423 is an apocalyptic number.

120120423 is a deficient number, since it is larger than the sum of its proper divisors (40040145).

120120423 is an equidigital number, since it uses as much as digits as its factorization.

120120423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40040144.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 120120423 is about 10959.9463046130. The cubic root of 120120423 is about 493.4073534032.

Adding to 120120423 its reverse (324021021), we get a palindrome (444141444).

The spelling of 120120423 in words is "one hundred twenty million, one hundred twenty thousand, four hundred twenty-three".

Divisors: 1 3 40040141 120120423