Base | Representation |
---|---|
bin | 1110010101001… |
… | …00011000101001 |
3 | 22101012100110201 |
4 | 13022210120221 |
5 | 221233222420 |
6 | 15532312201 |
7 | 2656530226 |
oct | 712443051 |
9 | 271170421 |
10 | 120210985 |
11 | 61946324 |
12 | 34312661 |
13 | 1bb9bc7b |
14 | 11d7294d |
15 | a84810a |
hex | 72a4629 |
120210985 has 8 divisors (see below), whose sum is σ = 144463176. Its totient is φ = 96028800.
The previous prime is 120210983. The next prime is 120211009. The reversal of 120210985 is 589012021.
It can be written as a sum of positive squares in 4 ways, for example, as 62283664 + 57927321 = 7892^2 + 7611^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 120210985 - 21 = 120210983 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (120210983) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13644 + ... + 20653.
It is an arithmetic number, because the mean of its divisors is an integer number (18057897).
Almost surely, 2120210985 is an apocalyptic number.
It is an amenable number.
120210985 is a deficient number, since it is larger than the sum of its proper divisors (24252191).
120210985 is an equidigital number, since it uses as much as digits as its factorization.
120210985 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35003.
The product of its (nonzero) digits is 1440, while the sum is 28.
The square root of 120210985 is about 10964.0770245379. The cubic root of 120210985 is about 493.5313199218.
The spelling of 120210985 in words is "one hundred twenty million, two hundred ten thousand, nine hundred eighty-five".
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