Base | Representation |
---|---|
bin | 11000011001111001… |
… | …11110000010010100 |
3 | 1020211010010021220020 |
4 | 30030330332002110 |
5 | 203313131224340 |
6 | 10004041505140 |
7 | 642453646350 |
oct | 141474760224 |
9 | 36733107806 |
10 | 13102211220 |
11 | 561394723a |
12 | 2657aa21b0 |
13 | 130a60ab07 |
14 | 8c4174460 |
15 | 51a3e19d0 |
hex | 30cf3e094 |
13102211220 has 48 divisors (see below), whose sum is σ = 41927077248. Its totient is φ = 2994791040.
The previous prime is 13102211209. The next prime is 13102211231. The reversal of 13102211220 is 2211220131.
It is an interprime number because it is at equal distance from previous prime (13102211209) and next prime (13102211231).
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 13102211220.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15597451 + ... + 15598290.
It is an arithmetic number, because the mean of its divisors is an integer number (873480776).
Almost surely, 213102211220 is an apocalyptic number.
13102211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13102211220 is an abundant number, since it is smaller than the sum of its proper divisors (28824866028).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13102211220 is a wasteful number, since it uses less digits than its factorization.
13102211220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31195760 (or 31195758 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 15.
Adding to 13102211220 its reverse (2211220131), we get a palindrome (15313431351).
The spelling of 13102211220 in words is "thirteen billion, one hundred two million, two hundred eleven thousand, two hundred twenty".
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