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120100985 = 524020197
BaseRepresentation
bin1110010100010…
…01100001111001
322100222202120122
413022021201321
5221221212420
615530103025
72655561434
oct712114171
9270882518
10120100985
1161880714
123427aa75
131bb60b94
1411d4481b
15a825725
hex7289879

120100985 has 4 divisors (see below), whose sum is σ = 144121188. Its totient is φ = 96080784.

The previous prime is 120100969. The next prime is 120100997. The reversal of 120100985 is 589001021.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 63234304 + 56866681 = 7952^2 + 7541^2 .

It is a cyclic number.

It is not a de Polignac number, because 120100985 - 24 = 120100969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12010094 + ... + 12010103.

It is an arithmetic number, because the mean of its divisors is an integer number (36030297).

Almost surely, 2120100985 is an apocalyptic number.

It is an amenable number.

120100985 is a deficient number, since it is larger than the sum of its proper divisors (24020203).

120100985 is an equidigital number, since it uses as much as digits as its factorization.

120100985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24020202.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 120100985 is about 10959.0594943179. The cubic root of 120100985 is about 493.3807374199.

The spelling of 120100985 in words is "one hundred twenty million, one hundred thousand, nine hundred eighty-five".

Divisors: 1 5 24020197 120100985