Base | Representation |
---|---|
bin | 101011111110010000… |
… | …010000111011100000 |
3 | 11111212112000021020010 |
4 | 223332100100323200 |
5 | 1233144112140342 |
6 | 33405044444520 |
7 | 3261016564044 |
oct | 537620207340 |
9 | 144775007203 |
10 | 47215349472 |
11 | 19029919985 |
12 | 91983a9740 |
13 | 45b5b88215 |
14 | 23dc984024 |
15 | 136518d29c |
hex | afe410ee0 |
47215349472 has 24 divisors (see below), whose sum is σ = 123940292616. Its totient is φ = 15738449792.
The previous prime is 47215349431. The next prime is 47215349477. The reversal of 47215349472 is 27494351274.
It is a tau number, because it is divible by the number of its divisors (24).
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47215349477) 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 3 ways as a sum of consecutive naturals, for example, 245913183 + ... + 245913374.
It is an arithmetic number, because the mean of its divisors is an integer number (5164178859).
Almost surely, 247215349472 is an apocalyptic number.
It is an amenable number.
47215349472 is an abundant number, since it is smaller than the sum of its proper divisors (76724943144).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47215349472 is a wasteful number, since it uses less digits than its factorization.
47215349472 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 491826570 (or 491826562 counting only the distinct ones).
The product of its digits is 1693440, while the sum is 48.
The spelling of 47215349472 in words is "forty-seven billion, two hundred fifteen million, three hundred forty-nine thousand, four hundred seventy-two".
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