Base | Representation |
---|---|
bin | 101100010011000010… |
… | …101111100110110001 |
3 | 11112202211021222120001 |
4 | 230103002233212301 |
5 | 1234402404023031 |
6 | 33503424150001 |
7 | 3302453256103 |
oct | 542302574661 |
9 | 145684258501 |
10 | 47564126641 |
11 | 19198789379 |
12 | 9275168301 |
13 | 4640203945 |
14 | 2433013573 |
15 | 1385ad4861 |
hex | b130af9b1 |
47564126641 has 4 divisors (see below), whose sum is σ = 48343866484. Its totient is φ = 46784386800.
The previous prime is 47564126639. The next prime is 47564126663. The reversal of 47564126641 is 14662146574.
It is a happy number.
47564126641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14662146574 = 2 ⋅7331073287.
It can be written as a sum of positive squares in 2 ways, for example, as 10390744225 + 37173382416 = 101935^2 + 192804^2 .
It is a cyclic number.
It is not a de Polignac number, because 47564126641 - 21 = 47564126639 is a prime.
It is a super-2 number, since 2×475641266412 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 47564126591 and 47564126600.
It is not an unprimeable number, because it can be changed into a prime (47564126341) 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, 389869830 + ... + 389869951.
It is an arithmetic number, because the mean of its divisors is an integer number (12085966621).
Almost surely, 247564126641 is an apocalyptic number.
It is an amenable number.
47564126641 is a deficient number, since it is larger than the sum of its proper divisors (779739843).
47564126641 is an equidigital number, since it uses as much as digits as its factorization.
47564126641 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 779739842.
The product of its digits is 967680, while the sum is 46.
The spelling of 47564126641 in words is "forty-seven billion, five hundred sixty-four million, one hundred twenty-six thousand, six hundred forty-one".
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