Base | Representation |
---|---|
bin | 1110101100001… |
… | …01101100010101 |
3 | 22120212210011000 |
4 | 13112011230111 |
5 | 223021342442 |
6 | 20121133513 |
7 | 3024306021 |
oct | 726055425 |
9 | 276783130 |
10 | 123230997 |
11 | 636192aa |
12 | 3532a299 |
13 | 1c6b8766 |
14 | 1251b381 |
15 | ac42d4c |
hex | 7585b15 |
123230997 has 8 divisors (see below), whose sum is σ = 182564480. Its totient is φ = 82153980.
The previous prime is 123230993. The next prime is 123231001. The reversal of 123230997 is 799032321.
It is an interprime number because it is at equal distance from previous prime (123230993) and next prime (123231001).
It is not a de Polignac number, because 123230997 - 22 = 123230993 is a prime.
It is a super-2 number, since 2×1232309972 = 30371757243228018, 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 (123230993) 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, 2282029 + ... + 2282082.
It is an arithmetic number, because the mean of its divisors is an integer number (22820560).
Almost surely, 2123230997 is an apocalyptic number.
It is an amenable number.
123230997 is a deficient number, since it is larger than the sum of its proper divisors (59333483).
123230997 is an equidigital number, since it uses as much as digits as its factorization.
123230997 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4564120 (or 4564114 counting only the distinct ones).
The product of its (nonzero) digits is 20412, while the sum is 36.
The square root of 123230997 is about 11100.9457705188. The cubic root of 123230997 is about 497.6301143643.
The spelling of 123230997 in words is "one hundred twenty-three million, two hundred thirty thousand, nine hundred ninety-seven".
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