Base | Representation |
---|---|
bin | 1011111010000… |
… | …10110101001100 |
3 | 20221221212012121 |
4 | 11331002311030 |
5 | 201032412320 |
6 | 13524542324 |
7 | 2322016000 |
oct | 575026514 |
9 | 227855177 |
10 | 99888460 |
11 | 51425751 |
12 | 295519a4 |
13 | 17904ac9 |
14 | d3a2700 |
15 | 8b818aa |
hex | 5f42d4c |
99888460 has 48 divisors (see below), whose sum is σ = 244641600. Its totient is φ = 34245120.
The previous prime is 99888457. The next prime is 99888487. The reversal of 99888460 is 6488899.
99888460 = T159 + T160 + ... + T844.
It is a junction number, because it is equal to n+sod(n) for n = 99888398 and 99888407.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421 + ... + 14140.
It is an arithmetic number, because the mean of its divisors is an integer number (5096700).
Almost surely, 299888460 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 99888460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122320800).
99888460 is an abundant number, since it is smaller than the sum of its proper divisors (144753140).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
99888460 is a wasteful number, since it uses less digits than its factorization.
99888460 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14591 (or 14575 counting only the distinct ones).
The product of its (nonzero) digits is 995328, while the sum is 52.
The square root of 99888460 is about 9994.4214439856. The cubic root of 99888460 is about 463.9862448855.
The spelling of 99888460 in words is "ninety-nine million, eight hundred eighty-eight thousand, four hundred sixty".
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