Base | Representation |
---|---|
bin | 10000101000101001… |
… | …11101000010101011 |
3 | 212001102012101011001 |
4 | 20110110331002223 |
5 | 121242312044234 |
6 | 4034113415431 |
7 | 434214002500 |
oct | 102424750253 |
9 | 25042171131 |
10 | 8930971819 |
11 | 3873334350 |
12 | 1892b6a577 |
13 | ac4391c13 |
14 | 60a1a74a7 |
15 | 3740e3d14 |
hex | 21453d0ab |
8930971819 has 24 divisors (see below), whose sum is σ = 11574724608. Its totient is φ = 6811111440.
The previous prime is 8930971801. The next prime is 8930971843. The reversal of 8930971819 is 9181790398.
It is not a de Polignac number, because 8930971819 - 29 = 8930971307 is a prime.
It is a super-2 number, since 2×89309718192 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 8930971819.
It is not an unprimeable number, because it can be changed into a prime (8930971849) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150939 + ... + 201604.
It is an arithmetic number, because the mean of its divisors is an integer number (482280192).
Almost surely, 28930971819 is an apocalyptic number.
8930971819 is a deficient number, since it is larger than the sum of its proper divisors (2643752789).
8930971819 is a wasteful number, since it uses less digits than its factorization.
8930971819 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 352615 (or 352608 counting only the distinct ones).
The product of its (nonzero) digits is 979776, while the sum is 55.
The square root of 8930971819 is about 94503.8190709772. The cubic root of 8930971819 is about 2074.7522281401.
It can be divided in two parts, 893097 and 1819, that added together give a square (894916 = 9462).
The spelling of 8930971819 in words is "eight billion, nine hundred thirty million, nine hundred seventy-one thousand, eight hundred nineteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •