Base | Representation |
---|---|
bin | 1001011010111000001110… |
… | …01101101000000110101101 |
3 | 2201100022101102110012212222 |
4 | 10231130013031220012231 |
5 | 10203342301030000021 |
6 | 112020120214205125 |
7 | 4235406526123646 |
oct | 455340715500655 |
9 | 81308342405788 |
10 | 20714748281261 |
11 | 6667091410731 |
12 | 23a67a73537a5 |
13 | b735140a4c08 |
14 | 5188561806cd |
15 | 25dc88ace6ab |
hex | 12d7073681ad |
20714748281261 has 8 divisors (see below), whose sum is σ = 20731291269120. Its totient is φ = 20698205838048.
The previous prime is 20714748281177. The next prime is 20714748281267. The reversal of 20714748281261 is 16218284741702.
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 20714748281261 - 226 = 20714681172397 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20714748281267) 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, 113659370 + ... + 113841476.
It is an arithmetic number, because the mean of its divisors is an integer number (2591411408640).
Almost surely, 220714748281261 is an apocalyptic number.
It is an amenable number.
20714748281261 is a deficient number, since it is larger than the sum of its proper divisors (16542987859).
20714748281261 is a wasteful number, since it uses less digits than its factorization.
20714748281261 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 272323.
The product of its (nonzero) digits is 2408448, while the sum is 53.
The spelling of 20714748281261 in words is "twenty trillion, seven hundred fourteen billion, seven hundred forty-eight million, two hundred eighty-one thousand, two hundred sixty-one".
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