| Base | Representation |
|---|---|
| bin | 11000100110111010… |
| … | …00111110100110100 |
| 3 | 1021002201101201222200 |
| 4 | 30103131013310310 |
| 5 | 204024043200340 |
| 6 | 10022540024500 |
| 7 | 645250140003 |
| oct | 142335076464 |
| 9 | 37081351880 |
| 10 | 13211303220 |
| 11 | 566a488715 |
| 12 | 2688532130 |
| 13 | 13270b5aab |
| 14 | 8d4850c3a |
| 15 | 524c90330 |
| hex | 313747d34 |
13211303220 has 144 divisors (see below), whose sum is σ = 41713176960. Its totient is φ = 3380444928.
The previous prime is 13211303219. The next prime is 13211303221. The reversal of 13211303220 is 2230311231.
13211303220 is a `hidden beast` number, since 132 + 11 + 303 + 220 = 666.
It is an interprime number because it is at equal distance from previous prime (13211303219) and next prime (13211303221).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 13211303193 and 13211303202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13211303221) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 843097 + ... + 858623.
It is an arithmetic number, because the mean of its divisors is an integer number (289674840).
Almost surely, 213211303220 is an apocalyptic number.
13211303220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13211303220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20856588480).
13211303220 is an abundant number, since it is smaller than the sum of its proper divisors (28501873740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13211303220 is a wasteful number, since it uses less digits than its factorization.
13211303220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15734 (or 15729 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 13211303220 its reverse (2230311231), we get a palindrome (15441614451).
The spelling of 13211303220 in words is "thirteen billion, two hundred eleven million, three hundred three thousand, two hundred twenty".
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