Base | Representation |
---|---|
bin | 101110101101… |
… | …101101000110 |
3 | 212001011010021 |
4 | 232231231012 |
5 | 11113331310 |
6 | 1114245354 |
7 | 206042062 |
oct | 56555506 |
9 | 25034107 |
10 | 12245830 |
11 | 6a04523 |
12 | 412685a |
13 | 26c9b6c |
14 | 18aaaa2 |
15 | 111d5da |
hex | badb46 |
12245830 has 16 divisors (see below), whose sum is σ = 22803120. Its totient is φ = 4729312.
The previous prime is 12245819. The next prime is 12245851. The reversal of 12245830 is 3854221.
It is a junction number, because it is equal to n+sod(n) for n = 12245795 and 12245804.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20824 + ... + 21403.
It is an arithmetic number, because the mean of its divisors is an integer number (1425195).
Almost surely, 212245830 is an apocalyptic number.
12245830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12245830 is a deficient number, since it is larger than the sum of its proper divisors (10557290).
12245830 is a wasteful number, since it uses less digits than its factorization.
12245830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42263.
The product of its (nonzero) digits is 1920, while the sum is 25.
The square root of 12245830 is about 3499.4042350092. The cubic root of 12245830 is about 230.4956544652.
The spelling of 12245830 in words is "twelve million, two hundred forty-five thousand, eight hundred thirty".
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