Base | Representation |
---|---|
bin | 111111000010000… |
… | …1001001000101010 |
3 | 12110101202220102200 |
4 | 1332010021020222 |
5 | 13312420441320 |
6 | 545512041030 |
7 | 103261222050 |
oct | 17604111052 |
9 | 5411686380 |
10 | 2115015210 |
11 | 995964260 |
12 | 4b0393176 |
13 | 2792473b9 |
14 | 160c781d0 |
15 | c5a31290 |
hex | 7e10922a |
2115015210 has 192 divisors, whose sum is σ = 7217233920. Its totient is φ = 416327040.
The previous prime is 2115015131. The next prime is 2115015223. The reversal of 2115015210 is 125105112.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 123639 + ... + 139701.
It is an arithmetic number, because the mean of its divisors is an integer number (37589760).
Almost surely, 22115015210 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2115015210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3608616960).
2115015210 is an abundant number, since it is smaller than the sum of its proper divisors (5102218710).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2115015210 is a wasteful number, since it uses less digits than its factorization.
2115015210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16113 (or 16110 counting only the distinct ones).
The product of its (nonzero) digits is 100, while the sum is 18.
The square root of 2115015210 is about 45989.2945151369. The cubic root of 2115015210 is about 1283.6240091928.
The spelling of 2115015210 in words is "two billion, one hundred fifteen million, fifteen thousand, two hundred ten".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.086 sec. • engine limits •