Base | Representation |
---|---|
bin | 101100001101011111… |
… | …100100000011110111 |
3 | 11112112100002120211102 |
4 | 230031133210003313 |
5 | 1234210040040411 |
6 | 33450300400315 |
7 | 3300242666030 |
oct | 541537440367 |
9 | 145470076742 |
10 | 47471018231 |
11 | 1915017467a |
12 | 9249b4609b |
13 | 4626b33c00 |
14 | 24248d7a87 |
15 | 137c841d3b |
hex | b0d7e40f7 |
47471018231 has 12 divisors (see below), whose sum is σ = 58746891312. Its totient is φ = 37559486016.
The previous prime is 47471018207. The next prime is 47471018249. The reversal of 47471018231 is 13281017474.
It is not a de Polignac number, because 47471018231 - 226 = 47403909367 is a prime.
It is a super-2 number, since 2×474710182312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47471014231) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20062646 + ... + 20065011.
It is an arithmetic number, because the mean of its divisors is an integer number (4895574276).
Almost surely, 247471018231 is an apocalyptic number.
47471018231 is a deficient number, since it is larger than the sum of its proper divisors (11275873081).
47471018231 is a wasteful number, since it uses less digits than its factorization.
47471018231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40127690 (or 40127677 counting only the distinct ones).
The product of its (nonzero) digits is 37632, while the sum is 38.
The spelling of 47471018231 in words is "forty-seven billion, four hundred seventy-one million, eighteen thousand, two hundred thirty-one".
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