Base | Representation |
---|---|
bin | 1011110101011101111111… |
… | …1100111001010101001101 |
3 | 1201002001101012111202122021 |
4 | 2331113133330321111031 |
5 | 3201202030041102341 |
6 | 43402104305450141 |
7 | 2512113361213222 |
oct | 275273774712515 |
9 | 51061335452567 |
10 | 13013213222221 |
11 | 4167966679163 |
12 | 156206a940951 |
13 | 7351aa2937c4 |
14 | 32dbb2c15949 |
15 | 1787846a59d1 |
hex | bd5dff3954d |
13013213222221 has 8 divisors (see below), whose sum is σ = 13603829621184. Its totient is φ = 12424665533280.
The previous prime is 13013213222201. The next prime is 13013213222287. The reversal of 13013213222221 is 12222231231031.
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 13013213222221 - 29 = 13013213221709 is a prime.
It is a super-3 number, since 3×130132132222213 (a number of 40 digits) contains 333 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13013213222201) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517164640 + ... + 517189801.
It is an arithmetic number, because the mean of its divisors is an integer number (1700478702648).
Almost surely, 213013213222221 is an apocalyptic number.
It is an amenable number.
13013213222221 is a deficient number, since it is larger than the sum of its proper divisors (590616398963).
13013213222221 is a wasteful number, since it uses less digits than its factorization.
13013213222221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1034355011.
The product of its (nonzero) digits is 1728, while the sum is 25.
Adding to 13013213222221 its reverse (12222231231031), we get a palindrome (25235444453252).
The spelling of 13013213222221 in words is "thirteen trillion, thirteen billion, two hundred thirteen million, two hundred twenty-two thousand, two hundred twenty-one".
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