Base | Representation |
---|---|
bin | 1011010010110… |
… | …1011111000111 |
3 | 10022010202111002 |
4 | 2310231133013 |
5 | 44111402411 |
6 | 4411203515 |
7 | 1113441314 |
oct | 264553707 |
9 | 108122432 |
10 | 47372231 |
11 | 24816505 |
12 | 13a4659b |
13 | 9a7830a |
14 | 6411d0b |
15 | 425b33b |
hex | 2d2d7c7 |
47372231 has 4 divisors (see below), whose sum is σ = 47398464. Its totient is φ = 47346000.
The previous prime is 47372191. The next prime is 47372233. The reversal of 47372231 is 13227374.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-47372231 is a prime.
It is a super-4 number, since 4×473722314 (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 47372194 and 47372203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47372233) 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, 10190 + ... + 14091.
It is an arithmetic number, because the mean of its divisors is an integer number (11849616).
Almost surely, 247372231 is an apocalyptic number.
47372231 is a deficient number, since it is larger than the sum of its proper divisors (26233).
47372231 is a wasteful number, since it uses less digits than its factorization.
47372231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26232.
The product of its digits is 7056, while the sum is 29.
The square root of 47372231 is about 6882.7487968108. The cubic root of 47372231 is about 361.8328109862.
The spelling of 47372231 in words is "forty-seven million, three hundred seventy-two thousand, two hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.001 sec. • engine limits •