Base | Representation |
---|---|
bin | 11000011001110010… |
… | …01010001000111100 |
3 | 1020211001020112112020 |
4 | 30030321022020330 |
5 | 203312402242340 |
6 | 10004004240140 |
7 | 642442315665 |
oct | 141471121074 |
9 | 36731215466 |
10 | 13101212220 |
11 | 5613324718 |
12 | 26576a0050 |
13 | 130a34b1a5 |
14 | 8c3d9436c |
15 | 51a2959d0 |
hex | 30ce4a23c |
13101212220 has 48 divisors (see below), whose sum is σ = 36690984960. Its totient is φ = 3492933696.
The previous prime is 13101212207. The next prime is 13101212221. The reversal of 13101212220 is 2221210131.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 13101212220.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13101212221) 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, 310341 + ... + 350019.
It is an arithmetic number, because the mean of its divisors is an integer number (764395520).
Almost surely, 213101212220 is an apocalyptic number.
13101212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13101212220 is an abundant number, since it is smaller than the sum of its proper divisors (23589772740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13101212220 is a wasteful number, since it uses less digits than its factorization.
13101212220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45194 (or 45192 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 15.
Adding to 13101212220 its reverse (2221210131), we get a palindrome (15322422351).
The spelling of 13101212220 in words is "thirteen billion, one hundred one million, two hundred twelve thousand, two hundred twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.079 sec. • engine limits •