Base | Representation |
---|---|
bin | 1101101101011… |
… | …00010001100101 |
3 | 22000101121220212 |
4 | 12312230101211 |
5 | 213420003141 |
6 | 15224505205 |
7 | 2564326124 |
oct | 666542145 |
9 | 260347825 |
10 | 115000421 |
11 | 59a07578 |
12 | 3261b205 |
13 | 1aa963b3 |
14 | 113b7abb |
15 | a1692eb |
hex | 6dac465 |
115000421 has 4 divisors (see below), whose sum is σ = 118710144. Its totient is φ = 111290700.
The previous prime is 115000409. The next prime is 115000429. The reversal of 115000421 is 124000511.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124000511 = 1289 ⋅96199.
It is a cyclic number.
It is not a de Polignac number, because 115000421 - 26 = 115000357 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 115000396 and 115000405.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (115000429) 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, 1854815 + ... + 1854876.
It is an arithmetic number, because the mean of its divisors is an integer number (29677536).
Almost surely, 2115000421 is an apocalyptic number.
It is an amenable number.
115000421 is a deficient number, since it is larger than the sum of its proper divisors (3709723).
115000421 is an equidigital number, since it uses as much as digits as its factorization.
115000421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3709722.
The product of its (nonzero) digits is 40, while the sum is 14.
The square root of 115000421 is about 10723.8249239719. The cubic root of 115000421 is about 486.2950065288.
Adding to 115000421 its reverse (124000511), we get a palindrome (239000932).
The spelling of 115000421 in words is "one hundred fifteen million, four hundred twenty-one", and thus it is an aban number.
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