Base | Representation |
---|---|
bin | 1011111011111100001111… |
… | …1110011110100100001000 |
3 | 1201110200101220120000100112 |
4 | 2332333003332132210020 |
5 | 3210012244213241040 |
6 | 43525134435253452 |
7 | 2523131122016450 |
oct | 276770376364410 |
9 | 51420356500315 |
10 | 13124413024520 |
11 | 4200039aaa516 |
12 | 157b72344a288 |
13 | 74281c215ba5 |
14 | 3353214b6d60 |
15 | 17b5e1c9a365 |
hex | befc3f9e908 |
13124413024520 has 256 divisors, whose sum is σ = 37843883458560. Its totient is φ = 3990505254912.
The previous prime is 13124413024517. The next prime is 13124413024549. The reversal of 13124413024520 is 2542031442131.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6440537 + ... + 8229783.
It is an arithmetic number, because the mean of its divisors is an integer number (147827669760).
Almost surely, 213124413024520 is an apocalyptic number.
13124413024520 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 13124413024520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18921941729280).
13124413024520 is an abundant number, since it is smaller than the sum of its proper divisors (24719470434040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13124413024520 is a wasteful number, since it uses less digits than its factorization.
13124413024520 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1789372 (or 1789368 counting only the distinct ones).
The product of its (nonzero) digits is 23040, while the sum is 32.
Adding to 13124413024520 its reverse (2542031442131), we get a palindrome (15666444466651).
The spelling of 13124413024520 in words is "thirteen trillion, one hundred twenty-four billion, four hundred thirteen million, twenty-four thousand, five hundred twenty".
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