Base | Representation |
---|---|
bin | 101110000101… |
… | …101011111010 |
3 | 211201211021022 |
4 | 232011223322 |
5 | 11043110124 |
6 | 1110542442 |
7 | 204460145 |
oct | 56055372 |
9 | 24654238 |
10 | 12081914 |
11 | 6902359 |
12 | 4067a22 |
13 | 2670380 |
14 | 186705c |
15 | 10d9c5e |
hex | b85afa |
12081914 has 16 divisors (see below), whose sum is σ = 19934208. Its totient is φ = 5457072.
The previous prime is 12081913. The next prime is 12081919. The reversal of 12081914 is 41918021.
It is a Harshad number since it is a multiple of its sum of digits (26).
It is not an unprimeable number, because it can be changed into a prime (12081913) 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, 3722 + ... + 6165.
It is an arithmetic number, because the mean of its divisors is an integer number (1245888).
Almost surely, 212081914 is an apocalyptic number.
12081914 is a deficient number, since it is larger than the sum of its proper divisors (7852294).
12081914 is a wasteful number, since it uses less digits than its factorization.
12081914 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9949.
The product of its (nonzero) digits is 576, while the sum is 26.
The square root of 12081914 is about 3475.9047742998. The cubic root of 12081914 is about 229.4626016717.
Adding to 12081914 its reverse (41918021), we get a palindrome (53999935).
The spelling of 12081914 in words is "twelve million, eighty-one thousand, nine hundred fourteen".
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