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23213200 = 2452131443
BaseRepresentation
bin101100010001…
…1010010010000
31121200100112011
41120203102100
521420310300
62145312304
7401210653
oct130432220
947610464
1023213200
111211546a
127935694
134a69b2a
14312389a
152087eba
hex1623490

23213200 has 60 divisors (see below), whose sum is σ = 56322288. Its totient is φ = 9193600.

The previous prime is 23213189. The next prime is 23213209. The reversal of 23213200 is 231232.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23213209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52179 + ... + 52621.

Almost surely, 223213200 is an apocalyptic number.

23213200 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 23213200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28161144).

23213200 is an abundant number, since it is smaller than the sum of its proper divisors (33109088).

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

23213200 is a wasteful number, since it uses less digits than its factorization.

23213200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 23213200 is about 4818.0078870836. The cubic root of 23213200 is about 285.2627104648.

Adding to 23213200 its reverse (231232), we get a palindrome (23444432).

The spelling of 23213200 in words is "twenty-three million, two hundred thirteen thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 131 200 262 400 443 524 655 886 1048 1310 1772 2096 2215 2620 3275 3544 4430 5240 6550 7088 8860 10480 11075 13100 17720 22150 26200 35440 44300 52400 58033 88600 116066 177200 232132 290165 464264 580330 928528 1160660 1450825 2321320 2901650 4642640 5803300 11606600 23213200