Base | Representation |
---|---|
bin | 11001100101110… |
… | …01011101001011 |
3 | 112221221022200120 |
4 | 30302321131023 |
5 | 414423403011 |
6 | 33145034323 |
7 | 5214441345 |
oct | 1462713513 |
9 | 487838616 |
10 | 214669131 |
11 | 1001a2106 |
12 | 5ba859a3 |
13 | 35622171 |
14 | 20720295 |
15 | 13ca5a06 |
hex | ccb974b |
214669131 has 4 divisors (see below), whose sum is σ = 286225512. Its totient is φ = 143112752.
The previous prime is 214669111. The next prime is 214669177. The reversal of 214669131 is 131966412.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 214669131 - 27 = 214669003 is a prime.
It is a super-2 number, since 2×2146691312 = 92165671608590322, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 214669092 and 214669101.
It is not an unprimeable number, because it can be changed into a prime (214669111) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35778186 + ... + 35778191.
It is an arithmetic number, because the mean of its divisors is an integer number (71556378).
Almost surely, 2214669131 is an apocalyptic number.
214669131 is a deficient number, since it is larger than the sum of its proper divisors (71556381).
214669131 is an equidigital number, since it uses as much as digits as its factorization.
214669131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 71556380.
The product of its digits is 7776, while the sum is 33.
The square root of 214669131 is about 14651.5914152695. The cubic root of 214669131 is about 598.7651743081.
The spelling of 214669131 in words is "two hundred fourteen million, six hundred sixty-nine thousand, one hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.079 sec. • engine limits •