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23285500 = 225376653
BaseRepresentation
bin101100011010…
…0111011111100
31121211000200221
41120310323330
521430114000
62151031124
7401631520
oct130647374
947730627
1023285500
1112164817
12796b4a4
134a93a04
143141d80
15209e61a
hex1634efc

23285500 has 48 divisors (see below), whose sum is σ = 58129344. Its totient is φ = 7982400.

The previous prime is 23285491. The next prime is 23285501. The reversal of 23285500 is 558232.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23285501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174 + ... + 6826.

It is an arithmetic number, because the mean of its divisors is an integer number (1211028).

Almost surely, 223285500 is an apocalyptic number.

23285500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23285500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29064672).

23285500 is an abundant number, since it is smaller than the sum of its proper divisors (34843844).

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

23285500 is a wasteful number, since it uses less digits than its factorization.

23285500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6679 (or 6667 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 23285500 is about 4825.5051549035. The cubic root of 23285500 is about 285.5585639525.

The spelling of 23285500 in words is "twenty-three million, two hundred eighty-five thousand, five hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 125 140 175 250 350 500 700 875 1750 3500 6653 13306 26612 33265 46571 66530 93142 133060 166325 186284 232855 332650 465710 665300 831625 931420 1164275 1663250 2328550 3326500 4657100 5821375 11642750 23285500