Base | Representation |
---|---|
bin | 101111001110… |
… | …110000010010 |
3 | 212022000211001 |
4 | 233032300102 |
5 | 11132144302 |
6 | 1121212214 |
7 | 210144541 |
oct | 57166022 |
9 | 25260731 |
10 | 12381202 |
11 | 6a971a9 |
12 | 419106a |
13 | 2746672 |
14 | 1904158 |
15 | 1148787 |
hex | bcec12 |
12381202 has 24 divisors (see below), whose sum is σ = 20412756. Its totient is φ = 5612544.
The previous prime is 12381169. The next prime is 12381223. The reversal of 12381202 is 20218321.
12381202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 6 ways, for example, as 5574321 + 6806881 = 2361^2 + 2609^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 12381202.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28378 + ... + 28810.
Almost surely, 212381202 is an apocalyptic number.
12381202 is a deficient number, since it is larger than the sum of its proper divisors (8031554).
12381202 is a wasteful number, since it uses less digits than its factorization.
12381202 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 510 (or 481 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 19.
The square root of 12381202 is about 3518.6932233430. The cubic root of 12381202 is about 231.3418848881.
Adding to 12381202 its reverse (20218321), we get a palindrome (32599523).
The spelling of 12381202 in words is "twelve million, three hundred eighty-one thousand, two hundred two".
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