Base | Representation |
---|---|
bin | 11001100111101… |
… | …01011101100011 |
3 | 112222101210211200 |
4 | 30303311131203 |
5 | 420004234130 |
6 | 33154212243 |
7 | 5216514045 |
oct | 1463653543 |
9 | 488353750 |
10 | 214914915 |
11 | 10034a836 |
12 | 5bb84083 |
13 | 356a9cb7 |
14 | 20785a95 |
15 | 13d03760 |
hex | ccf5763 |
214914915 has 12 divisors (see below), whose sum is σ = 372519264. Its totient is φ = 114621264.
The previous prime is 214914913. The next prime is 214914929. The reversal of 214914915 is 519419412.
It is a happy number.
It is not a de Polignac number, because 214914915 - 21 = 214914913 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 214914915.
It is not an unprimeable number, because it can be changed into a prime (214914913) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2387899 + ... + 2387988.
It is an arithmetic number, because the mean of its divisors is an integer number (31043272).
Almost surely, 2214914915 is an apocalyptic number.
214914915 is a deficient number, since it is larger than the sum of its proper divisors (157604349).
214914915 is a wasteful number, since it uses less digits than its factorization.
214914915 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4775898 (or 4775895 counting only the distinct ones).
The product of its digits is 12960, while the sum is 36.
The square root of 214914915 is about 14659.9766370892. The cubic root of 214914915 is about 598.9936045575.
The spelling of 214914915 in words is "two hundred fourteen million, nine hundred fourteen thousand, nine hundred fifteen".
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