Base | Representation |
---|---|
bin | 11100111101010… |
… | …101111100101000 |
3 | 1020212012100221010 |
4 | 130331111330220 |
5 | 1443333431403 |
6 | 120113143520 |
7 | 15016411050 |
oct | 3475257450 |
9 | 1225170833 |
10 | 485842728 |
11 | 22a277918 |
12 | 11685aba0 |
13 | 79869207 |
14 | 4874c560 |
15 | 2c9bd603 |
hex | 1cf55f28 |
485842728 has 128 divisors (see below), whose sum is σ = 1492300800. Its totient is φ = 128646144.
The previous prime is 485842663. The next prime is 485842729. The reversal of 485842728 is 827248584.
It is not an unprimeable number, because it can be changed into a prime (485842729) 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, 190083 + ... + 192621.
It is an arithmetic number, because the mean of its divisors is an integer number (11658600).
Almost surely, 2485842728 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 485842728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (746150400).
485842728 is an abundant number, since it is smaller than the sum of its proper divisors (1006458072).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
485842728 is a wasteful number, since it uses less digits than its factorization.
485842728 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2639 (or 2635 counting only the distinct ones).
The product of its digits is 1146880, while the sum is 48.
The square root of 485842728 is about 22041.8403950305. The cubic root of 485842728 is about 786.1376006272.
It can be divided in two parts, 4858 and 42728, that added together give a triangular number (47586 = T308).
The spelling of 485842728 in words is "four hundred eighty-five million, eight hundred forty-two thousand, seven hundred twenty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •