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23323120 = 245291539
BaseRepresentation
bin101100011111…
…0000111110000
31121212221022021
41120332013300
521432314440
62151521224
7402146302
oct130760760
947787267
1023323120
1112190007
127989214
134aa7b82
143151972
1520aa84a
hex163e1f0

23323120 has 20 divisors (see below), whose sum is σ = 54226440. Its totient is φ = 9329216.

The previous prime is 23323049. The next prime is 23323121. The reversal of 23323120 is 2132332.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 23323094 and 23323103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23323121) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 145690 + ... + 145849.

It is an arithmetic number, because the mean of its divisors is an integer number (2711322).

Almost surely, 223323120 is an apocalyptic number.

23323120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23323120 is an abundant number, since it is smaller than the sum of its proper divisors (30903320).

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

23323120 is a wasteful number, since it uses less digits than its factorization.

23323120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291552 (or 291546 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 23323120 is about 4829.4016192485. The cubic root of 23323120 is about 285.7122637952.

Adding to 23323120 its reverse (2132332), we get a palindrome (25455452).

The spelling of 23323120 in words is "twenty-three million, three hundred twenty-three thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 291539 583078 1166156 1457695 2332312 2915390 4664624 5830780 11661560 23323120