Base | Representation |
---|---|
bin | 101111110011110… |
… | …001110100000010 |
3 | 2001220022000211010 |
4 | 233303301310002 |
5 | 3120314240110 |
6 | 211331501350 |
7 | 25606521225 |
oct | 5763616402 |
9 | 2056260733 |
10 | 802102530 |
11 | 381847559 |
12 | 1a4757856 |
13 | ca23aba8 |
14 | 787555bc |
15 | 4a640020 |
hex | 2fcf1d02 |
802102530 has 64 divisors (see below), whose sum is σ = 1966923648. Its totient is φ = 209264640.
The previous prime is 802102523. The next prime is 802102541. The reversal of 802102530 is 35201208.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 802102497 and 802102506.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1018797 + ... + 1019583.
It is an arithmetic number, because the mean of its divisors is an integer number (30733182).
Almost surely, 2802102530 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 802102530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (983461824).
802102530 is an abundant number, since it is smaller than the sum of its proper divisors (1164821118).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
802102530 is a wasteful number, since it uses less digits than its factorization.
802102530 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1491.
The product of its (nonzero) digits is 480, while the sum is 21.
The square root of 802102530 is about 28321.4146892418. The cubic root of 802102530 is about 929.1303119516.
Adding to 802102530 its reverse (35201208), we get a palindrome (837303738).
The spelling of 802102530 in words is "eight hundred two million, one hundred two thousand, five hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •