Base | Representation |
---|---|
bin | 101111001100… |
… | …100111010110 |
3 | 212021120210110 |
4 | 233030213112 |
5 | 11131404223 |
6 | 1121103450 |
7 | 210110151 |
oct | 57144726 |
9 | 25246713 |
10 | 12372438 |
11 | 6a90661 |
12 | 4187b86 |
13 | 2742690 |
14 | 1900c98 |
15 | 1145d93 |
hex | bcc9d6 |
12372438 has 16 divisors (see below), whose sum is σ = 26648496. Its totient is φ = 3806880.
The previous prime is 12372431. The next prime is 12372457. The reversal of 12372438 is 83427321.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12372431) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79233 + ... + 79388.
It is an arithmetic number, because the mean of its divisors is an integer number (1665531).
Almost surely, 212372438 is an apocalyptic number.
12372438 is an abundant number, since it is smaller than the sum of its proper divisors (14276058).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12372438 is a wasteful number, since it uses less digits than its factorization.
12372438 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 158639.
The product of its digits is 8064, while the sum is 30.
The square root of 12372438 is about 3517.4476541947. The cubic root of 12372438 is about 231.2872870968.
Adding to 12372438 its reverse (83427321), we get a palindrome (95799759).
The spelling of 12372438 in words is "twelve million, three hundred seventy-two thousand, four hundred thirty-eight".
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