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23323420 = 2259711201
BaseRepresentation
bin101100011111…
…0001100011100
31121212221201101
41120332030130
521432322140
62151522444
7402150211
oct130761434
947787641
1023323420
111219025a
127989424
134aa8053
143151b08
1520aa99a
hex163e31c

23323420 has 24 divisors (see below), whose sum is σ = 49070448. Its totient is φ = 9312000.

The previous prime is 23323367. The next prime is 23323441. The reversal of 23323420 is 2432332.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18820 + ... + 20020.

It is an arithmetic number, because the mean of its divisors is an integer number (2044602).

Almost surely, 223323420 is an apocalyptic number.

23323420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23323420 is an abundant number, since it is smaller than the sum of its proper divisors (25747028).

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

23323420 is a wasteful number, since it uses less digits than its factorization.

23323420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181 (or 2179 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 23323420 is about 4829.4326788972. The cubic root of 23323420 is about 285.7134888073.

Adding to 23323420 its reverse (2432332), we get a palindrome (25755752).

It can be divided in two parts, 233 and 23420, that added together give a triangular number (23653 = T217).

The spelling of 23323420 in words is "twenty-three million, three hundred twenty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 971 1201 1942 2402 3884 4804 4855 6005 9710 12010 19420 24020 1166171 2332342 4664684 5830855 11661710 23323420