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23830828 = 2276712703
BaseRepresentation
bin101101011101…
…0000100101100
31122211201202021
41122322010230
522100041303
62210435524
7406362430
oct132720454
948751667
1023830828
11124a74aa
127b92ba4
134c24ca8
1432449c0
15215aebd
hex16ba12c

23830828 has 24 divisors (see below), whose sum is σ = 48376832. Its totient is φ = 10059984.

The previous prime is 23830823. The next prime is 23830831. The reversal of 23830828 is 82803832.

It is a junction number, because it is equal to n+sod(n) for n = 23830793 and 23830802.

It is not an unprimeable number, because it can be changed into a prime (23830823) 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, 4476 + ... + 8227.

Almost surely, 223830828 is an apocalyptic number.

23830828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23830828 is an abundant number, since it is smaller than the sum of its proper divisors (24546004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23830828 is a wasteful number, since it uses less digits than its factorization.

23830828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12781 (or 12779 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 23830828 is about 4881.6829065395. The cubic root of 23830828 is about 287.7705702355.

The spelling of 23830828 in words is "twenty-three million, eight hundred thirty thousand, eight hundred twenty-eight".

Divisors: 1 2 4 7 14 28 67 134 268 469 938 1876 12703 25406 50812 88921 177842 355684 851101 1702202 3404404 5957707 11915414 23830828