Base | Representation |
---|---|
bin | 11000111110110111… |
… | …11010001111010100 |
3 | 1021121201122001020001 |
4 | 30133123322033110 |
5 | 204432022441040 |
6 | 10054520221044 |
7 | 653240525332 |
oct | 143733721724 |
9 | 37551561201 |
10 | 13412312020 |
11 | 576299a598 |
12 | 272390a784 |
13 | 1359934303 |
14 | 913416b52 |
15 | 53774859a |
hex | 31f6fa3d4 |
13412312020 has 24 divisors (see below), whose sum is σ = 28179464544. Its totient is φ = 5362332576.
The previous prime is 13412312009. The next prime is 13412312029. The reversal of 13412312020 is 2021321431.
It is a happy number.
It is a super-2 number, since 2×134123120202 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13412312029) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119314 + ... + 202633.
It is an arithmetic number, because the mean of its divisors is an integer number (1174144356).
Almost surely, 213412312020 is an apocalyptic number.
13412312020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13412312020 is an abundant number, since it is smaller than the sum of its proper divisors (14767152524).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13412312020 is a wasteful number, since it uses less digits than its factorization.
13412312020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 324039 (or 324037 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 19.
Adding to 13412312020 its reverse (2021321431), we get a palindrome (15433633451).
The spelling of 13412312020 in words is "thirteen billion, four hundred twelve million, three hundred twelve thousand, twenty".
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