Base | Representation |
---|---|
bin | 101111001111… |
… | …110001111000 |
3 | 212022020120112 |
4 | 233033301320 |
5 | 11132313100 |
6 | 1121243452 |
7 | 210163016 |
oct | 57176170 |
9 | 25266515 |
10 | 12385400 |
11 | 6a9a375 |
12 | 4193588 |
13 | 2748551 |
14 | 19058b6 |
15 | 1149b35 |
hex | bcfc78 |
12385400 has 24 divisors (see below), whose sum is σ = 28796520. Its totient is φ = 4954080.
The previous prime is 12385391. The next prime is 12385433. The reversal of 12385400 is 458321.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30764 + ... + 31163.
It is an arithmetic number, because the mean of its divisors is an integer number (1199855).
Almost surely, 212385400 is an apocalyptic number.
12385400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12385400 is an abundant number, since it is smaller than the sum of its proper divisors (16411120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12385400 is a wasteful number, since it uses less digits than its factorization.
12385400 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 61943 (or 61934 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 23.
The square root of 12385400 is about 3519.2897010618. The cubic root of 12385400 is about 231.3680283781.
The spelling of 12385400 in words is "twelve million, three hundred eighty-five thousand, four hundred".
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