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23230120 = 2352712143
BaseRepresentation
bin101100010011…
…1011010101000
31121201012201211
41120213122220
521421330440
62145522504
7401311204
oct130473250
947635654
1023230120
1112127151
127943434
134a74744
143129b04
15208ceea
hex16276a8

23230120 has 32 divisors (see below), whose sum is σ = 52485120. Its totient is φ = 9253440.

The previous prime is 23230111. The next prime is 23230121. The reversal of 23230120 is 2103232.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23230120.

It is not an unprimeable number, because it can be changed into a prime (23230121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9769 + ... + 11911.

It is an arithmetic number, because the mean of its divisors is an integer number (1640160).

Almost surely, 223230120 is an apocalyptic number.

23230120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23230120 is an abundant number, since it is smaller than the sum of its proper divisors (29255000).

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

23230120 is a wasteful number, since it uses less digits than its factorization.

23230120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425 (or 2421 counting only the distinct ones).

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

The square root of 23230120 is about 4819.7634796741. The cubic root of 23230120 is about 285.3320025462.

Adding to 23230120 its reverse (2103232), we get a palindrome (25333352).

The spelling of 23230120 in words is "twenty-three million, two hundred thirty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 271 542 1084 1355 2143 2168 2710 4286 5420 8572 10715 10840 17144 21430 42860 85720 580753 1161506 2323012 2903765 4646024 5807530 11615060 23230120