Base | Representation |
---|---|
bin | 111011110000111… |
… | …1110000111111010 |
3 | 12011202111120021200 |
4 | 1313201332013322 |
5 | 13101340101124 |
6 | 530554315030 |
7 | 100460365326 |
oct | 16741760772 |
9 | 5152446250 |
10 | 2005393914 |
11 | 939aa1147 |
12 | 47b728a76 |
13 | 25c615524 |
14 | 1504a0986 |
15 | bb0cabc9 |
hex | 7787e1fa |
2005393914 has 12 divisors (see below), whose sum is σ = 4345020186. Its totient is φ = 668464632.
The previous prime is 2005393909. The next prime is 2005393919. The reversal of 2005393914 is 4193935002.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (2005393909) and next prime (2005393919).
It can be written as a sum of positive squares in only one way, i.e., 1511887689 + 493506225 = 38883^2 + 22215^2 .
It is not an unprimeable number, because it can be changed into a prime (2005393919) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55705369 + ... + 55705404.
Almost surely, 22005393914 is an apocalyptic number.
2005393914 is an abundant number, since it is smaller than the sum of its proper divisors (2339626272).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2005393914 is a wasteful number, since it uses less digits than its factorization.
2005393914 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 111410781 (or 111410778 counting only the distinct ones).
The product of its (nonzero) digits is 29160, while the sum is 36.
The square root of 2005393914 is about 44781.6247360455. The cubic root of 2005393914 is about 1261.0526841458.
The spelling of 2005393914 in words is "two billion, five million, three hundred ninety-three thousand, nine hundred fourteen".
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