Base | Representation |
---|---|
bin | 11010011100010010… |
… | …111101010110110111 |
3 | 2201021200121000122110 |
4 | 122130102331112313 |
5 | 431121324110013 |
6 | 21013151302103 |
7 | 2023403116500 |
oct | 323422752667 |
9 | 81250530573 |
10 | 28392019383 |
11 | 1104a611432 |
12 | 560451a933 |
13 | 28a61c6990 |
14 | 1534a77ba7 |
15 | b128a02c3 |
hex | 69c4bd5b7 |
28392019383 has 48 divisors (see below), whose sum is σ = 48953942016. Its totient is φ = 14492882880.
The previous prime is 28392019373. The next prime is 28392019399. The reversal of 28392019383 is 38391029382.
It is a happy number.
It is not a de Polignac number, because 28392019383 - 213 = 28392011191 is a prime.
It is a super-2 number, since 2×283920193832 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28392019303) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 180391 + ... + 298872.
It is an arithmetic number, because the mean of its divisors is an integer number (1019873792).
Almost surely, 228392019383 is an apocalyptic number.
28392019383 is a deficient number, since it is larger than the sum of its proper divisors (20561922633).
28392019383 is a wasteful number, since it uses less digits than its factorization.
28392019383 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 479324 (or 479317 counting only the distinct ones).
The product of its (nonzero) digits is 559872, while the sum is 48.
Subtracting 28392019383 from its reverse (38391029382), we obtain a palindrome (9999009999).
It can be divided in two parts, 283920 and 19383, that added together give a palindrome (303303).
The spelling of 28392019383 in words is "twenty-eight billion, three hundred ninety-two million, nineteen thousand, three hundred eighty-three".
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