Base | Representation |
---|---|
bin | 11001100111100… |
… | …11110000001000 |
3 | 112222101110020022 |
4 | 30303303300020 |
5 | 420004023122 |
6 | 33154120012 |
7 | 5216454452 |
oct | 1463636010 |
9 | 488343208 |
10 | 214907912 |
11 | 10034554a |
12 | 5bb80008 |
13 | 356a6a5b |
14 | 207832d2 |
15 | 13d01642 |
hex | ccf3c08 |
214907912 has 36 divisors (see below), whose sum is σ = 414383085. Its totient is φ = 104489280.
The previous prime is 214907911. The next prime is 214907939. The reversal of 214907912 is 219709412.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 2 ways, for example, as 213919876 + 988036 = 14626^2 + 994^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=10366.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (214907911) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2943908 + ... + 2943980.
Almost surely, 2214907912 is an apocalyptic number.
It is an amenable number.
214907912 is a deficient number, since it is larger than the sum of its proper divisors (199475173).
214907912 is an frugal number, since it uses more digits than its factorization.
214907912 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 294 (or 146 counting only the distinct ones).
The product of its (nonzero) digits is 9072, while the sum is 35.
The square root of 214907912 is about 14659.7377875595. The cubic root of 214907912 is about 598.9870984203.
The spelling of 214907912 in words is "two hundred fourteen million, nine hundred seven thousand, nine hundred twelve".
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