Base | Representation |
---|---|
bin | 1110010110011… |
… | …11000001010111 |
3 | 22101112020000210 |
4 | 13023033001113 |
5 | 221304314443 |
6 | 15540140503 |
7 | 2661155331 |
oct | 713170127 |
9 | 271466023 |
10 | 120385623 |
11 | 61a55556 |
12 | 34397733 |
13 | 1bc305c7 |
14 | 11dba451 |
15 | a87ec33 |
hex | 72cf057 |
120385623 has 4 divisors (see below), whose sum is σ = 160514168. Its totient is φ = 80257080.
The previous prime is 120385621. The next prime is 120385649. The reversal of 120385623 is 326583021.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326583021 = 3 ⋅108861007.
It is not a de Polignac number, because 120385623 - 21 = 120385621 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120385621) 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, 20064268 + ... + 20064273.
It is an arithmetic number, because the mean of its divisors is an integer number (40128542).
Almost surely, 2120385623 is an apocalyptic number.
120385623 is a deficient number, since it is larger than the sum of its proper divisors (40128545).
120385623 is an equidigital number, since it uses as much as digits as its factorization.
120385623 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40128544.
The product of its (nonzero) digits is 8640, while the sum is 30.
The square root of 120385623 is about 10972.0382336191. The cubic root of 120385623 is about 493.7701988639.
The spelling of 120385623 in words is "one hundred twenty million, three hundred eighty-five thousand, six hundred twenty-three".
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