Base | Representation |
---|---|
bin | 1000010000000101… |
… | …0001011010010001 |
3 | 12201100202220020011 |
4 | 2010001101122101 |
5 | 14014010112334 |
6 | 1003441314521 |
7 | 105613363054 |
oct | 20401213221 |
9 | 5640686204 |
10 | 2214925969 |
11 | a372a4733 |
12 | 519935a41 |
13 | 293b593a9 |
14 | 170244a9b |
15 | ce6b9564 |
hex | 84051691 |
2214925969 has 9 divisors (see below), whose sum is σ = 2338580667. Its totient is φ = 2097503784.
The previous prime is 2214925949. The next prime is 2214925981. The reversal of 2214925969 is 9695294122.
The square root of 2214925969 is 47063.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 1111889025 + 1103036944 = 33345^2 + 33212^2 .
It is not a de Polignac number, because 2214925969 - 225 = 2181371537 is a prime.
It is a super-2 number, since 2×22149259692 = 9811794096301177922, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (2214925939) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 892959 + ... + 895435.
Almost surely, 22214925969 is an apocalyptic number.
2214925969 is the 47063-rd square number.
2214925969 is the 23532-nd centered octagonal number.
It is an amenable number.
2214925969 is a deficient number, since it is larger than the sum of its proper divisors (123654698).
2214925969 is an frugal number, since it uses more digits than its factorization.
2214925969 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4992 (or 2496 counting only the distinct ones).
The product of its digits is 699840, while the sum is 49.
The cubic root of 2214925969 is about 1303.5261211812.
Multiplying 2214925969 by its sum of digits (49), we get a square (108531372481 = 3294412).
The spelling of 2214925969 in words is "two billion, two hundred fourteen million, nine hundred twenty-five thousand, nine hundred sixty-nine".
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