Base | Representation |
---|---|
bin | 11010100101100011… |
… | …111110100000000110 |
3 | 2201200112010000022000 |
4 | 122211203332200012 |
5 | 431431123203322 |
6 | 21040423250130 |
7 | 2030301352302 |
oct | 324543764006 |
9 | 81615100260 |
10 | 28547475462 |
11 | 1111a33a930 |
12 | 56485a9946 |
13 | 28cc48611c |
14 | 154b582d02 |
15 | b2135b3ac |
hex | 6a58fe806 |
28547475462 has 64 divisors (see below), whose sum is σ = 69482085120. Its totient is φ = 8616240000.
The previous prime is 28547475431. The next prime is 28547475469. The reversal of 28547475462 is 26457474582.
28547475462 is a `hidden beast` number, since 2 + 8 + 54 + 7 + 47 + 546 + 2 = 666.
It is a super-3 number, since 3×285474754623 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a junction number, because it is equal to n+sod(n) for n = 28547475399 and 28547475408.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28547475469) 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 31 ways as a sum of consecutive naturals, for example, 53358 + ... + 244830.
It is an arithmetic number, because the mean of its divisors is an integer number (1085657580).
Almost surely, 228547475462 is an apocalyptic number.
28547475462 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 28547475462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34741042560).
28547475462 is an abundant number, since it is smaller than the sum of its proper divisors (40934609658).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28547475462 is a wasteful number, since it uses less digits than its factorization.
28547475462 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 191746 (or 191740 counting only the distinct ones).
The product of its digits is 15052800, while the sum is 54.
It can be divided in two parts, 285474754 and 62, that added together give a square (285474816 = 168962).
The spelling of 28547475462 in words is "twenty-eight billion, five hundred forty-seven million, four hundred seventy-five thousand, four hundred sixty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •