Base | Representation |
---|---|
bin | 10010101000000101… |
… | …10011011000101100 |
3 | 221210220200101002020 |
4 | 21110002303120230 |
5 | 130434442034000 |
6 | 4332141430140 |
7 | 502544135133 |
oct | 112402633054 |
9 | 27726611066 |
10 | 9999955500 |
11 | 4271794637 |
12 | 1b30b6b350 |
13 | c349a3142 |
14 | 6ac15091a |
15 | 3d7d9eba0 |
hex | 2540b362c |
9999955500 has 96 divisors (see below), whose sum is σ = 29143994880. Its totient is φ = 2664446400.
The previous prime is 9999955487. The next prime is 9999955501. The reversal of 9999955500 is 55599999.
It is a super-2 number, since 2×99999555002 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (60).
It is a nialpdrome in base 10.
It is a zygodrome in base 10.
It is not an unprimeable number, because it can be changed into a prime (9999955501) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2672631 + ... + 2676369.
It is an arithmetic number, because the mean of its divisors is an integer number (303583280).
Almost surely, 29999955500 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 9999955500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14571997440).
9999955500 is an abundant number, since it is smaller than the sum of its proper divisors (19144039380).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
9999955500 is a wasteful number, since it uses less digits than its factorization.
9999955500 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5544 (or 5532 counting only the distinct ones).
The product of its (nonzero) digits is 7381125, while the sum is 60.
The square root of 9999955500 is about 99999.7774997525. Note that the first 3 decimals coincide. The cubic root of 9999955500 is about 2154.4314942824.
The spelling of 9999955500 in words is "nine billion, nine hundred ninety-nine million, nine hundred fifty-five thousand, five hundred".
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