Base | Representation |
---|---|
bin | 111011010001100… |
… | …111000000111000 |
3 | 2120022021102010000 |
4 | 323101213000320 |
5 | 4014041100432 |
6 | 242402553000 |
7 | 33433605153 |
oct | 7321470070 |
9 | 2508242100 |
10 | 994471992 |
11 | 470398588 |
12 | 239068760 |
13 | 12b052c87 |
14 | 9610cc9a |
15 | 5c48d57c |
hex | 3b467038 |
994471992 has 80 divisors (see below), whose sum is σ = 2823733440. Its totient is φ = 326934144.
The previous prime is 994471979. The next prime is 994472021. The reversal of 994471992 is 299174499.
994471992 is a `hidden beast` number, since 9 + 9 + 447 + 199 + 2 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36793 + ... + 57815.
It is an arithmetic number, because the mean of its divisors is an integer number (35296668).
Almost surely, 2994471992 is an apocalyptic number.
994471992 is the 15768-th decagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 994471992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1411866720).
994471992 is an abundant number, since it is smaller than the sum of its proper divisors (1829261448).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
994471992 is a wasteful number, since it uses less digits than its factorization.
994471992 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21114 (or 21101 counting only the distinct ones).
The product of its digits is 1469664, while the sum is 54.
The square root of 994471992 is about 31535.2499910814. The cubic root of 994471992 is about 998.1539247700.
The spelling of 994471992 in words is "nine hundred ninety-four million, four hundred seventy-one thousand, nine hundred ninety-two".
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