Base | Representation |
---|---|
bin | 1011111011111011011101… |
… | …0110100110011100000101 |
3 | 1201110122212011001110200011 |
4 | 2332332313112212130011 |
5 | 3210011331004310141 |
6 | 43525101432150221 |
7 | 2523122640636661 |
oct | 276766726463405 |
9 | 51418764043604 |
10 | 13124201244421 |
11 | 41aaa40500a43 |
12 | 157b684538371 |
13 | 7427b7395a17 |
14 | 3353013098a1 |
15 | 17b5cd3b5881 |
hex | befb75a6705 |
13124201244421 has 8 divisors (see below), whose sum is σ = 13507691678784. Its totient is φ = 12746228658240.
The previous prime is 13124201244383. The next prime is 13124201244431. The reversal of 13124201244421 is 12444210242131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13124201244421 - 213 = 13124201236229 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13124201244431) 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, 1379457220 + ... + 1379466733.
It is an arithmetic number, because the mean of its divisors is an integer number (1688461459848).
Almost surely, 213124201244421 is an apocalyptic number.
It is an amenable number.
13124201244421 is a deficient number, since it is larger than the sum of its proper divisors (383490434363).
13124201244421 is an equidigital number, since it uses as much as digits as its factorization.
13124201244421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2758924091.
The product of its (nonzero) digits is 12288, while the sum is 31.
Adding to 13124201244421 its reverse (12444210242131), we get a palindrome (25568411486552).
The spelling of 13124201244421 in words is "thirteen trillion, one hundred twenty-four billion, two hundred one million, two hundred forty-four thousand, four hundred twenty-one".
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