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120230879 = 1918134961
BaseRepresentation
bin1110010101010…
…01001111011111
322101020100202112
413022221033133
5221234342004
615532544235
72656642226
oct712511737
9271210675
10120230879
116195a26a
123432207b
131bba8042
1411d79cbd
15a84de6e
hex72a93df

120230879 has 8 divisors (see below), whose sum is σ = 127261680. Its totient is φ = 113270400.

The previous prime is 120230857. The next prime is 120230911. The reversal of 120230879 is 978032021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120230879 - 212 = 120226783 is a prime.

It is a super-2 number, since 2×1202308792 = 28910928530225282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120230779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14042 + ... + 20919.

It is an arithmetic number, because the mean of its divisors is an integer number (15907710).

Almost surely, 2120230879 is an apocalyptic number.

120230879 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

120230879 is a deficient number, since it is larger than the sum of its proper divisors (7030801).

120230879 is a wasteful number, since it uses less digits than its factorization.

120230879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35161.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 120230879 is about 10964.9842225149. The cubic root of 120230879 is about 493.5585436416.

The spelling of 120230879 in words is "one hundred twenty million, two hundred thirty thousand, eight hundred seventy-nine".

Divisors: 1 19 181 3439 34961 664259 6327941 120230879