Base | Representation |
---|---|
bin | 11101111000100100… |
… | …00111110000111111 |
3 | 1112102010011220102210 |
4 | 32330102013300333 |
5 | 230324201101040 |
6 | 11212001351503 |
7 | 1105402533300 |
oct | 167422076077 |
9 | 45363156383 |
10 | 16043768895 |
11 | 6893320040 |
12 | 3139038593 |
13 | 1688b6c39b |
14 | ac2ac67a7 |
15 | 63d78e480 |
hex | 3bc487c3f |
16043768895 has 96 divisors (see below), whose sum is σ = 33269584896. Its totient is φ = 6525523200.
The previous prime is 16043768893. The next prime is 16043768911. The reversal of 16043768895 is 59886734061.
It is a Cunningham number, because it is equal to 1266642-1.
It is not a de Polignac number, because 16043768895 - 21 = 16043768893 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (16043768893) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 358885 + ... + 401105.
It is an arithmetic number, because the mean of its divisors is an integer number (346558176).
Almost surely, 216043768895 is an apocalyptic number.
16043768895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
16043768895 is an abundant number, since it is smaller than the sum of its proper divisors (17225816001).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
16043768895 is a wasteful number, since it uses less digits than its factorization.
16043768895 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42301 (or 42294 counting only the distinct ones).
The product of its (nonzero) digits is 8709120, while the sum is 57.
The spelling of 16043768895 in words is "sixteen billion, forty-three million, seven hundred sixty-eight thousand, eight hundred ninety-five".
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