Base | Representation |
---|---|
bin | 1011111010110… |
… | …10010110001100 |
3 | 20222010202100000 |
4 | 11331122112030 |
5 | 201044003110 |
6 | 13531004300 |
7 | 2322566550 |
oct | 575322614 |
9 | 228122300 |
10 | 99984780 |
11 | 51491055 |
12 | 29599690 |
13 | 179398bc |
14 | d3c9860 |
15 | 8ba01c0 |
hex | 5f5a58c |
99984780 has 144 divisors (see below), whose sum is σ = 359573760. Its totient is φ = 22845888.
The previous prime is 99984757. The next prime is 99984817. The reversal of 99984780 is 8748999.
It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32551 + ... + 35489.
It is an arithmetic number, because the mean of its divisors is an integer number (2497040).
Almost surely, 299984780 is an apocalyptic number.
99984780 is a gapful number since it is divisible by the number (90) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 99984780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179786880).
99984780 is an abundant number, since it is smaller than the sum of its proper divisors (259588980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
99984780 is a wasteful number, since it uses less digits than its factorization.
99984780 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2970 (or 2956 counting only the distinct ones).
The product of its (nonzero) digits is 1306368, while the sum is 54.
The square root of 99984780 is about 9999.2389710417. The cubic root of 99984780 is about 464.1353338391.
The spelling of 99984780 in words is "ninety-nine million, nine hundred eighty-four thousand, seven hundred eighty".
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