Base | Representation |
---|---|
bin | 101111010011… |
… | …011010000100 |
3 | 212022222221220 |
4 | 233103122010 |
5 | 11133302020 |
6 | 1121440340 |
7 | 210254235 |
oct | 57233204 |
9 | 25288856 |
10 | 12400260 |
11 | 6aaa554 |
12 | 41a00b0 |
13 | 2752242 |
14 | 190b08c |
15 | 114e240 |
hex | bd3684 |
12400260 has 48 divisors (see below), whose sum is σ = 34909056. Its totient is φ = 3288832.
The previous prime is 12400247. The next prime is 12400303. The reversal of 12400260 is 6200421.
12400260 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 is a Harshad number since it is a multiple of its sum of digits (15).
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13537 + ... + 14423.
It is an arithmetic number, because the mean of its divisors is an integer number (727272).
Almost surely, 212400260 is an apocalyptic number.
12400260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12400260 is an abundant number, since it is smaller than the sum of its proper divisors (22508796).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12400260 is a wasteful number, since it uses less digits than its factorization.
12400260 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1132 (or 1130 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 15.
The square root of 12400260 is about 3521.4002896575. The cubic root of 12400260 is about 231.4605231648.
Adding to 12400260 its reverse (6200421), we get a palindrome (18600681).
The spelling of 12400260 in words is "twelve million, four hundred thousand, two hundred sixty".
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