Base | Representation |
---|---|
bin | 101011110100110101… |
… | …000011010110100111 |
3 | 11111110111110111210012 |
4 | 223310311003112213 |
5 | 1232333122033111 |
6 | 33341235320435 |
7 | 3254056531142 |
oct | 536465032647 |
9 | 144414414705 |
10 | 47057221031 |
11 | 18a58635717 |
12 | 915345011b |
13 | 458c1a15b2 |
14 | 23c5981059 |
15 | 135635548b |
hex | af4d435a7 |
47057221031 has 8 divisors (see below), whose sum is σ = 47737783584. Its totient is φ = 46377152640.
The previous prime is 47057221027. The next prime is 47057221051. The reversal of 47057221031 is 13012275074.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 47057221031 - 22 = 47057221027 is a prime.
It is a super-3 number, since 3×470572210313 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47057221051) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70475 + ... + 314771.
It is an arithmetic number, because the mean of its divisors is an integer number (5967222948).
Almost surely, 247057221031 is an apocalyptic number.
47057221031 is a deficient number, since it is larger than the sum of its proper divisors (680562553).
47057221031 is a wasteful number, since it uses less digits than its factorization.
47057221031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 247081.
The product of its (nonzero) digits is 11760, while the sum is 32.
The spelling of 47057221031 in words is "forty-seven billion, fifty-seven million, two hundred twenty-one thousand, thirty-one".
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