Base | Representation |
---|---|
bin | 111111000010000… |
… | …1111001111111111 |
3 | 12110101211011210021 |
4 | 1332010033033333 |
5 | 13312422242010 |
6 | 545512353011 |
7 | 103261355056 |
oct | 17604171777 |
9 | 5411734707 |
10 | 2115040255 |
11 | 995981059 |
12 | 4b03a5767 |
13 | 279255913 |
14 | 160c8339d |
15 | c5a388da |
hex | 7e10f3ff |
2115040255 has 16 divisors (see below), whose sum is σ = 2659037184. Its totient is φ = 1613003040.
The previous prime is 2115040247. The next prime is 2115040259. The reversal of 2115040255 is 5520405112.
It is not a de Polignac number, because 2115040255 - 23 = 2115040247 is a prime.
It is a super-3 number, since 3×21150402553 (a number of 29 digits) contains 333 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2115040259) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91447 + ... + 112216.
It is an arithmetic number, because the mean of its divisors is an integer number (166189824).
Almost surely, 22115040255 is an apocalyptic number.
2115040255 is a deficient number, since it is larger than the sum of its proper divisors (543996929).
2115040255 is a wasteful number, since it uses less digits than its factorization.
2115040255 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 203766.
The product of its (nonzero) digits is 2000, while the sum is 25.
The square root of 2115040255 is about 45989.5668059615. The cubic root of 2115040255 is about 1283.6290758603.
Adding to 2115040255 its reverse (5520405112), we get a palindrome (7635445367).
The spelling of 2115040255 in words is "two billion, one hundred fifteen million, forty thousand, two hundred fifty-five".
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