Base | Representation |
---|---|
bin | 1110110011111… |
… | …00000011010001 |
3 | 22122210001100111 |
4 | 13121330003101 |
5 | 223301140311 |
6 | 20154521321 |
7 | 3036010660 |
oct | 731740321 |
9 | 278701314 |
10 | 124240081 |
11 | 64148459 |
12 | 35736241 |
13 | 1c97cb54 |
14 | 12700dd7 |
15 | ad91d21 |
hex | 767c0d1 |
124240081 has 8 divisors (see below), whose sum is σ = 142075584. Its totient is φ = 106426320.
The previous prime is 124240037. The next prime is 124240093. The reversal of 124240081 is 180042421.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 124240081 - 29 = 124239569 is a prime.
It is a super-2 number, since 2×1242400812 = 30871195453773122, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (124240001) 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, 9591 + ... + 18451.
It is an arithmetic number, because the mean of its divisors is an integer number (17759448).
Almost surely, 2124240081 is an apocalyptic number.
It is an amenable number.
124240081 is a deficient number, since it is larger than the sum of its proper divisors (17835503).
124240081 is an equidigital number, since it uses as much as digits as its factorization.
124240081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10871.
The product of its (nonzero) digits is 512, while the sum is 22.
The square root of 124240081 is about 11146.3034679664. The cubic root of 124240081 is about 498.9847144526.
The spelling of 124240081 in words is "one hundred twenty-four million, two hundred forty thousand, eighty-one".
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