Base | Representation |
---|---|
bin | 101011110100001001… |
… | …110111011111010111 |
3 | 11111102201011100120220 |
4 | 223310021313133113 |
5 | 1232322222301442 |
6 | 33340152525423 |
7 | 3253561361013 |
oct | 536411673727 |
9 | 144381140526 |
10 | 47045900247 |
11 | 18a522031a5 |
12 | 914b6b0873 |
13 | 4589a397c8 |
14 | 23c4275543 |
15 | 135536aeec |
hex | af42777d7 |
47045900247 has 32 divisors (see below), whose sum is σ = 67603921920. Its totient is φ = 29007820800.
The previous prime is 47045900207. The next prime is 47045900261. The reversal of 47045900247 is 74200954074.
It is not a de Polignac number, because 47045900247 - 27 = 47045900119 is a prime.
It is a super-2 number, since 2×470459002472 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 47045900199 and 47045900208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47045900207) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1052383 + ... + 1096175.
It is an arithmetic number, because the mean of its divisors is an integer number (2112622560).
Almost surely, 247045900247 is an apocalyptic number.
47045900247 is a gapful number since it is divisible by the number (47) formed by its first and last digit.
47045900247 is a deficient number, since it is larger than the sum of its proper divisors (20558021673).
47045900247 is a wasteful number, since it uses less digits than its factorization.
47045900247 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44263.
The product of its (nonzero) digits is 282240, while the sum is 42.
The spelling of 47045900247 in words is "forty-seven billion, forty-five million, nine hundred thousand, two hundred forty-seven".
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