Base | Representation |
---|---|
bin | 101111110111100… |
… | …101111011010100 |
3 | 2001222011211102002 |
4 | 233313211323110 |
5 | 3121043234140 |
6 | 211405134432 |
7 | 25621154321 |
oct | 5767457324 |
9 | 2058154362 |
10 | 803102420 |
11 | 38236a80a |
12 | 1a4b5a418 |
13 | ca4cb043 |
14 | 78935b48 |
15 | 4a78b415 |
hex | 2fde5ed4 |
803102420 has 24 divisors (see below), whose sum is σ = 1690428264. Its totient is φ = 320495616.
The previous prime is 803102411. The next prime is 803102429. The reversal of 803102420 is 24201308.
It is an interprime number because it is at equal distance from previous prime (803102411) and next prime (803102429).
It can be written as a sum of positive squares in 4 ways, for example, as 23464336 + 779638084 = 4844^2 + 27922^2 .
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 803102392 and 803102401.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (803102429) 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, 37709 + ... + 55028.
It is an arithmetic number, because the mean of its divisors is an integer number (70434511).
Almost surely, 2803102420 is an apocalyptic number.
It is an amenable number.
803102420 is an abundant number, since it is smaller than the sum of its proper divisors (887325844).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
803102420 is a wasteful number, since it uses less digits than its factorization.
803102420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 93179 (or 93177 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 20.
The square root of 803102420 is about 28339.0617346446. The cubic root of 803102420 is about 929.5162319981.
Adding to 803102420 its reverse (24201308), we get a palindrome (827303728).
The spelling of 803102420 in words is "eight hundred three million, one hundred two thousand, four hundred twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.061 sec. • engine limits •