Base | Representation |
---|---|
bin | 1011001101010… |
… | …0010111111111 |
3 | 10021110012210120 |
4 | 2303110113333 |
5 | 44013212411 |
6 | 4355310023 |
7 | 1110361215 |
oct | 263242777 |
9 | 107405716 |
10 | 47007231 |
11 | 24597257 |
12 | 138ab313 |
13 | 997b13b |
14 | 6358cb5 |
15 | 41d8106 |
hex | 2cd45ff |
47007231 has 16 divisors (see below), whose sum is σ = 65445600. Its totient is φ = 29973888.
The previous prime is 47007221. The next prime is 47007251. The reversal of 47007231 is 13270074.
It is not a de Polignac number, because 47007231 - 25 = 47007199 is a prime.
It is a super-2 number, since 2×470072312 = 4419359532574722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47007211) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7005 + ... + 11961.
It is an arithmetic number, because the mean of its divisors is an integer number (4090350).
Almost surely, 247007231 is an apocalyptic number.
47007231 is a deficient number, since it is larger than the sum of its proper divisors (18438369).
47007231 is a wasteful number, since it uses less digits than its factorization.
47007231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5098.
The product of its (nonzero) digits is 1176, while the sum is 24.
The square root of 47007231 is about 6856.1819549951. The cubic root of 47007231 is about 360.9011144559.
The spelling of 47007231 in words is "forty-seven million, seven thousand, two hundred thirty-one".
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