Base | Representation |
---|---|
bin | 1101000010011110… |
… | …11010000110010011 |
3 | 200001211222212021020 |
4 | 12201033122012103 |
5 | 103314013410011 |
6 | 3114341130523 |
7 | 335320122660 |
oct | 64117320623 |
9 | 20054885236 |
10 | 7000138131 |
11 | 2a72439428 |
12 | 14343b9a43 |
13 | 877353a8c |
14 | 4a5994a67 |
15 | 2ae845006 |
hex | 1a13da193 |
7000138131 has 16 divisors (see below), whose sum is σ = 10847673600. Its totient is φ = 3932280288.
The previous prime is 7000138129. The next prime is 7000138153. The reversal of 7000138131 is 1318310007.
It is not a de Polignac number, because 7000138131 - 21 = 7000138129 is a prime.
It is a super-2 number, since 2×70001381312 = 98003867706160346322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (7000138121) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2823676 + ... + 2826153.
It is an arithmetic number, because the mean of its divisors is an integer number (677979600).
Almost surely, 27000138131 is an apocalyptic number.
7000138131 is a deficient number, since it is larger than the sum of its proper divisors (3847535469).
7000138131 is a wasteful number, since it uses less digits than its factorization.
7000138131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5649898.
The product of its (nonzero) digits is 504, while the sum is 24.
The square root of 7000138131 is about 83666.8281399504. The cubic root of 7000138131 is about 1912.9437653133.
Adding to 7000138131 its reverse (1318310007), we get a palindrome (8318448138).
The spelling of 7000138131 in words is "seven billion, one hundred thirty-eight thousand, one hundred thirty-one".
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