Base | Representation |
---|---|
bin | 10111001010101100… |
… | …11100110010100000 |
3 | 1012002210220210222200 |
4 | 23211112130302200 |
5 | 200433034132034 |
6 | 5414105133200 |
7 | 620135400555 |
oct | 134526346240 |
9 | 35083823880 |
10 | 12437802144 |
11 | 53028a6929 |
12 | 24b148a200 |
13 | 1232a80451 |
14 | 85dc22a2c |
15 | 4cbdeea99 |
hex | 2e559cca0 |
12437802144 has 72 divisors (see below), whose sum is σ = 36510993792. Its totient is φ = 4012191360.
The previous prime is 12437802137. The next prime is 12437802187. The reversal of 12437802144 is 44120873421.
12437802144 is a `hidden beast` number, since 1 + 2 + 437 + 8 + 0 + 214 + 4 = 666.
It is a tau number, because it is divible by the number of its divisors (72).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 12437802099 and 12437802108.
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, 687634 + ... + 705489.
It is an arithmetic number, because the mean of its divisors is an integer number (507097136).
Almost surely, 212437802144 is an apocalyptic number.
It is an amenable number.
12437802144 is an abundant number, since it is smaller than the sum of its proper divisors (24073191648).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12437802144 is a wasteful number, since it uses less digits than its factorization.
12437802144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1393170 (or 1393159 counting only the distinct ones).
The product of its (nonzero) digits is 43008, while the sum is 36.
The spelling of 12437802144 in words is "twelve billion, four hundred thirty-seven million, eight hundred two thousand, one hundred forty-four".
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