Base | Representation |
---|---|
bin | 11001011000011… |
… | …10100011000111 |
3 | 112211122111001011 |
4 | 30230032203013 |
5 | 414001424034 |
6 | 33043343051 |
7 | 5163536350 |
oct | 1454164307 |
9 | 484574034 |
10 | 212920519 |
11 | aa208379 |
12 | 5b381a87 |
13 | 3515c296 |
14 | 203c6d27 |
15 | 13a5c864 |
hex | cb0e8c7 |
212920519 has 8 divisors (see below), whose sum is σ = 243453600. Its totient is φ = 182416416.
The previous prime is 212920507. The next prime is 212920537. The reversal of 212920519 is 915029212.
212920519 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 212920519 - 29 = 212920007 is a prime.
It is a super-2 number, since 2×2129205192 = 90670294822458722, which contains 22 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 (212920319) 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, 11877 + ... + 23809.
It is an arithmetic number, because the mean of its divisors is an integer number (30431700).
Almost surely, 2212920519 is an apocalyptic number.
212920519 is a deficient number, since it is larger than the sum of its proper divisors (30533081).
212920519 is a wasteful number, since it uses less digits than its factorization.
212920519 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14489.
The product of its (nonzero) digits is 3240, while the sum is 31.
The square root of 212920519 is about 14591.7962910671. The cubic root of 212920519 is about 597.1349698157.
The spelling of 212920519 in words is "two hundred twelve million, nine hundred twenty thousand, five hundred nineteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •