Base | Representation |
---|---|
bin | 101111010111… |
… | …000010010010 |
3 | 212100202100100 |
4 | 233113002102 |
5 | 11134240442 |
6 | 1122033230 |
7 | 210345456 |
oct | 57270222 |
9 | 25322310 |
10 | 12415122 |
11 | 700a735 |
12 | 41a8816 |
13 | 2758c35 |
14 | 1912666 |
15 | 115384c |
hex | bd7092 |
12415122 has 24 divisors (see below), whose sum is σ = 27169740. Its totient is φ = 4096800.
The previous prime is 12415121. The next prime is 12415129. The reversal of 12415122 is 22151421.
12415122 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 11229201 + 1185921 = 3351^2 + 1089^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 12415095 and 12415104.
It is not an unprimeable number, because it can be changed into a prime (12415121) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1597 + ... + 5232.
Almost surely, 212415122 is an apocalyptic number.
12415122 is an abundant number, since it is smaller than the sum of its proper divisors (14754618).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12415122 is a wasteful number, since it uses less digits than its factorization.
12415122 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6938 (or 6935 counting only the distinct ones).
The product of its digits is 160, while the sum is 18.
The square root of 12415122 is about 3523.5098978150. The cubic root of 12415122 is about 231.5529565201.
Adding to 12415122 its reverse (22151421), we get a palindrome (34566543).
The spelling of 12415122 in words is "twelve million, four hundred fifteen thousand, one hundred twenty-two".
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