Base | Representation |
---|---|
bin | 101011110100001111… |
… | …110111111001000110 |
3 | 11111102211010100102010 |
4 | 223310033313321012 |
5 | 1232323123143013 |
6 | 33340250355050 |
7 | 3253610636304 |
oct | 536417677106 |
9 | 144384110363 |
10 | 47047474758 |
11 | 18a53089149 |
12 | 915012ba86 |
13 | 458a16b37b |
14 | 23c4565274 |
15 | 135557c7c3 |
hex | af43f7e46 |
47047474758 has 32 divisors (see below), whose sum is σ = 100671056640. Its totient is φ = 14613536160.
The previous prime is 47047474757. The next prime is 47047474807. The reversal of 47047474758 is 85747474074.
It is a super-2 number, since 2×470474747582 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (57).
It is a junction number, because it is equal to n+sod(n) for n = 47047474698 and 47047474707.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47047474757) 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, 3375810 + ... + 3389717.
It is an arithmetic number, because the mean of its divisors is an integer number (3145970520).
Almost surely, 247047474758 is an apocalyptic number.
47047474758 is an abundant number, since it is smaller than the sum of its proper divisors (53623581882).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47047474758 is a wasteful number, since it uses less digits than its factorization.
47047474758 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6765612.
The product of its (nonzero) digits is 24586240, while the sum is 57.
The spelling of 47047474758 in words is "forty-seven billion, forty-seven million, four hundred seventy-four thousand, seven hundred fifty-eight".
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