Base | Representation |
---|---|
bin | 1110110001001… |
… | …01010111010101 |
3 | 22122010000021211 |
4 | 13120211113111 |
5 | 223203310023 |
6 | 20143141421 |
7 | 3033001540 |
oct | 730452725 |
9 | 278100254 |
10 | 123885013 |
11 | 63a2570a |
12 | 355a4871 |
13 | 1c887355 |
14 | 1264b857 |
15 | ad21a0d |
hex | 76255d5 |
123885013 has 8 divisors (see below), whose sum is σ = 146465280. Its totient is φ = 102525360.
The previous prime is 123884953. The next prime is 123885017. The reversal of 123885013 is 310588321.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 123885013 - 213 = 123876821 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 (123885017) 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, 304933 + ... + 305338.
It is an arithmetic number, because the mean of its divisors is an integer number (18308160).
Almost surely, 2123885013 is an apocalyptic number.
It is an amenable number.
123885013 is a deficient number, since it is larger than the sum of its proper divisors (22580267).
123885013 is an equidigital number, since it uses as much as digits as its factorization.
123885013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 610307.
The product of its (nonzero) digits is 5760, while the sum is 31.
The square root of 123885013 is about 11130.3644594416. The cubic root of 123885013 is about 498.5089083785.
The spelling of 123885013 in words is "one hundred twenty-three million, eight hundred eighty-five thousand, thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •