Base | Representation |
---|---|
bin | 1101000011011010… |
… | …01101001101111001 |
3 | 200002101200201201012 |
4 | 12201231031031321 |
5 | 103323013342224 |
6 | 3115220403305 |
7 | 335443406126 |
oct | 64155151571 |
9 | 20071621635 |
10 | 7007949689 |
11 | 2a76894364 |
12 | 1436b46535 |
13 | 878b5a4c0 |
14 | 4a6a2974d |
15 | 2b038980e |
hex | 1a1b4d379 |
7007949689 has 4 divisors (see below), whose sum is σ = 7547022756. Its totient is φ = 6468876624.
The previous prime is 7007949671. The next prime is 7007949691. The reversal of 7007949689 is 9869497007.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9869497007 = 29 ⋅340327483.
It can be written as a sum of positive squares in 2 ways, for example, as 4170576400 + 2837373289 = 64580^2 + 53267^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-7007949689 is a prime.
It is a super-2 number, since 2×70079496892 = 98222717687110393442, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (7007949989) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269536514 + ... + 269536539.
It is an arithmetic number, because the mean of its divisors is an integer number (1886755689).
Almost surely, 27007949689 is an apocalyptic number.
It is an amenable number.
7007949689 is a deficient number, since it is larger than the sum of its proper divisors (539073067).
7007949689 is a wasteful number, since it uses less digits than its factorization.
7007949689 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 539073066.
The product of its (nonzero) digits is 6858432, while the sum is 59.
The square root of 7007949689 is about 83713.4976512151. The cubic root of 7007949689 is about 1913.6550615734.
The spelling of 7007949689 in words is "seven billion, seven million, nine hundred forty-nine thousand, six hundred eighty-nine".
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