Base | Representation |
---|---|
bin | 101110010100… |
… | …101001010110 |
3 | 211211221022210 |
4 | 232110221112 |
5 | 11102040230 |
6 | 1112134250 |
7 | 205133613 |
oct | 56245126 |
9 | 24757283 |
10 | 12143190 |
11 | 69443a4 |
12 | 4097386 |
13 | 2692227 |
14 | 188150a |
15 | 10eceb0 |
hex | b94a56 |
12143190 has 16 divisors (see below), whose sum is σ = 29143728. Its totient is φ = 3238176.
The previous prime is 12143189. The next prime is 12143221. The reversal of 12143190 is 9134121.
12143190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×121431902 = 294914126752200, which contains 22 as substring.
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, 202357 + ... + 202416.
It is an arithmetic number, because the mean of its divisors is an integer number (1821483).
Almost surely, 212143190 is an apocalyptic number.
12143190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12143190 is an abundant number, since it is smaller than the sum of its proper divisors (17000538).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12143190 is a wasteful number, since it uses less digits than its factorization.
12143190 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 404783.
The product of its (nonzero) digits is 216, while the sum is 21.
The square root of 12143190 is about 3484.7080222021. The cubic root of 12143190 is about 229.8498705203.
The spelling of 12143190 in words is "twelve million, one hundred forty-three thousand, one hundred ninety".
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