Search a number
-
+
23165200 = 2452291997
BaseRepresentation
bin101100001011…
…1100100010000
31121120220200101
41120113210100
521412241300
62144302144
7400621012
oct130274420
947526611
1023165200
11120923a3
127911954
134a51026
1431101b2
152078b6a
hex1617910

23165200 has 60 divisors (see below), whose sum is σ = 57602340. Its totient is φ = 8942080.

The previous prime is 23165189. The next prime is 23165201. The reversal of 23165200 is 256132.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 4260096 + 18905104 = 2064^2 + 4348^2 .

It is not an unprimeable number, because it can be changed into a prime (23165201) 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, 10602 + ... + 12598.

It is an arithmetic number, because the mean of its divisors is an integer number (960039).

Almost surely, 223165200 is an apocalyptic number.

23165200 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 23165200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28801170).

23165200 is an abundant number, since it is smaller than the sum of its proper divisors (34437140).

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

23165200 is a wasteful number, since it uses less digits than its factorization.

23165200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044 (or 2033 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 23165200 is about 4813.0239974469. The cubic root of 23165200 is about 285.0659537521.

The spelling of 23165200 in words is "twenty-three million, one hundred sixty-five thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 29 40 50 58 80 100 116 145 200 232 290 400 464 580 725 1160 1450 1997 2320 2900 3994 5800 7988 9985 11600 15976 19970 31952 39940 49925 57913 79880 99850 115826 159760 199700 231652 289565 399400 463304 579130 798800 926608 1158260 1447825 2316520 2895650 4633040 5791300 11582600 23165200