Base | Representation |
---|---|
bin | 11001100100011… |
… | …01111011111111 |
3 | 112221121021011122 |
4 | 30302031323333 |
5 | 414402202004 |
6 | 33141141155 |
7 | 5213066561 |
oct | 1462157377 |
9 | 487537148 |
10 | 214490879 |
11 | 100090199 |
12 | 5b9ba7bb |
13 | 3558bca5 |
14 | 206b5331 |
15 | 13c6ccbe |
hex | cc8deff |
214490879 has 4 divisors (see below), whose sum is σ = 214526376. Its totient is φ = 214455384.
The previous prime is 214490851. The next prime is 214490897. The reversal of 214490879 is 978094412.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-214490879 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 (214490849) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6164 + ... + 21609.
It is an arithmetic number, because the mean of its divisors is an integer number (53631594).
Almost surely, 2214490879 is an apocalyptic number.
214490879 is a deficient number, since it is larger than the sum of its proper divisors (35497).
214490879 is an equidigital number, since it uses as much as digits as its factorization.
214490879 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35496.
The product of its (nonzero) digits is 145152, while the sum is 44.
The square root of 214490879 is about 14645.5071267608. The cubic root of 214490879 is about 598.5993988119.
The spelling of 214490879 in words is "two hundred fourteen million, four hundred ninety thousand, eight hundred seventy-nine".
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