Base | Representation |
---|---|
bin | 1110010011101… |
… | …01110000110111 |
3 | 22100211122112001 |
4 | 13021311300313 |
5 | 221211120043 |
6 | 15524240131 |
7 | 2655103414 |
oct | 711656067 |
9 | 270748461 |
10 | 120020023 |
11 | 61825902 |
12 | 34240047 |
13 | 1bb33086 |
14 | 11d2310b |
15 | a80b74d |
hex | 7275c37 |
120020023 has 4 divisors (see below), whose sum is σ = 120045928. Its totient is φ = 119994120.
The previous prime is 120020011. The next prime is 120020027. The reversal of 120020023 is 320020021.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320020021 = 19 ⋅16843159.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-120020023 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 120019991 and 120020009.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120020027) 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, 3888 + ... + 15973.
It is an arithmetic number, because the mean of its divisors is an integer number (30011482).
Almost surely, 2120020023 is an apocalyptic number.
120020023 is a deficient number, since it is larger than the sum of its proper divisors (25905).
120020023 is an equidigital number, since it uses as much as digits as its factorization.
120020023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25904.
The product of its (nonzero) digits is 24, while the sum is 10.
The square root of 120020023 is about 10955.3650327134. The cubic root of 120020023 is about 493.2698472095.
Adding to 120020023 its reverse (320020021), we get a palindrome (440040044).
The spelling of 120020023 in words is "one hundred twenty million, twenty thousand, twenty-three".
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