Base | Representation |
---|---|
bin | 11001011111110… |
… | …01001001000011 |
3 | 112220110022010202 |
4 | 30233321021003 |
5 | 414223201121 |
6 | 33120115415 |
7 | 5204650652 |
oct | 1457711103 |
9 | 486408122 |
10 | 213881411 |
11 | aa8042a7 |
12 | 5b765b6b |
13 | 35407763 |
14 | 20597199 |
15 | 13b9c40b |
hex | cbf9243 |
213881411 has 8 divisors (see below), whose sum is σ = 216600384. Its totient is φ = 211173120.
The previous prime is 213881407. The next prime is 213881413. The reversal of 213881411 is 114188312.
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 213881411 - 22 = 213881407 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (213881413) 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, 42326 + ... + 47108.
It is an arithmetic number, because the mean of its divisors is an integer number (27075048).
Almost surely, 2213881411 is an apocalyptic number.
213881411 is a deficient number, since it is larger than the sum of its proper divisors (2718973).
213881411 is an equidigital number, since it uses as much as digits as its factorization.
213881411 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5341.
The product of its digits is 1536, while the sum is 29.
The square root of 213881411 is about 14624.6849880604. The cubic root of 213881411 is about 598.0318948473.
The spelling of 213881411 in words is "two hundred thirteen million, eight hundred eighty-one thousand, four hundred eleven".
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