Base | Representation |
---|---|
bin | 10010011111110101… |
… | …01000000001000011 |
3 | 221122002100222101200 |
4 | 21033322220001003 |
5 | 130314224443130 |
6 | 4321225232243 |
7 | 501043403430 |
oct | 111772500103 |
9 | 27562328350 |
10 | 9930702915 |
11 | 42366940a1 |
12 | 1b11932683 |
13 | c23536893 |
14 | 6a2c84b87 |
15 | 3d1c70760 |
hex | 24fea8043 |
9930702915 has 96 divisors (see below), whose sum is σ = 20863889280. Its totient is φ = 4265644032.
The previous prime is 9930702913. The next prime is 9930702917. The reversal of 9930702915 is 5192070399.
It is a happy number.
9930702915 is a nontrivial binomial coefficient, being equal to C(140931, 2).
It is an interprime number because it is at equal distance from previous prime (9930702913) and next prime (9930702917).
It is not a de Polignac number, because 9930702915 - 21 = 9930702913 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is not an unprimeable number, because it can be changed into a prime (9930702913) 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, 4438177 + ... + 4440413.
It is an arithmetic number, because the mean of its divisors is an integer number (217332180).
Almost surely, 29930702915 is an apocalyptic number.
9930702915 is the 140930-th triangular number.
9930702915 is an abundant number, since it is smaller than the sum of its proper divisors (10933186365).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
9930702915 is a wasteful number, since it uses less digits than its factorization.
9930702915 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3101 (or 3098 counting only the distinct ones).
The product of its (nonzero) digits is 153090, while the sum is 45.
The square root of 9930702915 is about 99652.9122253836. The cubic root of 9930702915 is about 2149.4466154647.
The spelling of 9930702915 in words is "nine billion, nine hundred thirty million, seven hundred two thousand, nine hundred fifteen".
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