Base | Representation |
---|---|
bin | 11000110001011111… |
… | …11100001100110100 |
3 | 1021022220112020000200 |
4 | 30120233330030310 |
5 | 204214312404140 |
6 | 10035431440500 |
7 | 650406114054 |
oct | 143057741464 |
9 | 37286466020 |
10 | 13300122420 |
11 | 5705632912 |
12 | 26b2226130 |
13 | 133c613430 |
14 | 902571564 |
15 | 52c987030 |
hex | 318bfc334 |
13300122420 has 144 divisors (see below), whose sum is σ = 43997640960. Its totient is φ = 3232389888.
The previous prime is 13300122413. The next prime is 13300122467. The reversal of 13300122420 is 2422100331.
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 = 13300122393 and 13300122402.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148887 + ... + 220833.
Almost surely, 213300122420 is an apocalyptic number.
13300122420 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 13300122420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21998820480).
13300122420 is an abundant number, since it is smaller than the sum of its proper divisors (30697518540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13300122420 is a wasteful number, since it uses less digits than its factorization.
13300122420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 72054 (or 72049 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 13300122420 its reverse (2422100331), we get a palindrome (15722222751).
The spelling of 13300122420 in words is "thirteen billion, three hundred million, one hundred twenty-two thousand, four hundred twenty".
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