Base | Representation |
---|---|
bin | 11000111111111011… |
… | …00011001001001000 |
3 | 1021122100020001122110 |
4 | 30133331203021020 |
5 | 204441302132222 |
6 | 10055433222320 |
7 | 653405503542 |
oct | 143775431110 |
9 | 37570201573 |
10 | 13421130312 |
11 | 5767972937 |
12 | 27268619a0 |
13 | 135b701035 |
14 | 914670692 |
15 | 5383db30c |
hex | 31ff63248 |
13421130312 has 64 divisors (see below), whose sum is σ = 33677916480. Its totient is φ = 4457071872.
The previous prime is 13421130299. The next prime is 13421130319. The reversal of 13421130312 is 21303112431.
It is a super-3 number, since 3×134211303123 (a number of 31 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (13421130319) 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, 12014778 + ... + 12015894.
It is an arithmetic number, because the mean of its divisors is an integer number (526217445).
Almost surely, 213421130312 is an apocalyptic number.
13421130312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
13421130312 is an abundant number, since it is smaller than the sum of its proper divisors (20256786168).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13421130312 is a wasteful number, since it uses less digits than its factorization.
13421130312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2542 (or 2538 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 13421130312 its reverse (21303112431), we get a palindrome (34724242743).
The spelling of 13421130312 in words is "thirteen billion, four hundred twenty-one million, one hundred thirty thousand, three hundred twelve".
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