Search a number
-
+
23234320 = 245290429
BaseRepresentation
bin101100010100…
…0011100010000
31121201102111101
41120220130100
521421444240
62145554144
7401326354
oct130503420
947642441
1023234320
111212a31a
127945954
134a76625
14312b464
15208e39a
hex1628710

23234320 has 20 divisors (see below), whose sum is σ = 54019980. Its totient is φ = 9293696.

The previous prime is 23234311. The next prime is 23234329. The reversal of 23234320 is 2343232.

It is an interprime number because it is at equal distance from previous prime (23234311) and next prime (23234329).

It can be written as a sum of positive squares in 2 ways, for example, as 13424896 + 9809424 = 3664^2 + 3132^2 .

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

It is not an unprimeable number, because it can be changed into a prime (23234329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145135 + ... + 145294.

It is an arithmetic number, because the mean of its divisors is an integer number (2700999).

Almost surely, 223234320 is an apocalyptic number.

23234320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23234320 is an abundant number, since it is smaller than the sum of its proper divisors (30785660).

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

23234320 is a wasteful number, since it uses less digits than its factorization.

23234320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290442 (or 290436 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 23234320 is about 4820.1991660096. The cubic root of 23234320 is about 285.3491974953.

Adding to 23234320 its reverse (2343232), we get a palindrome (25577552).

The spelling of 23234320 in words is "twenty-three million, two hundred thirty-four thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 290429 580858 1161716 1452145 2323432 2904290 4646864 5808580 11617160 23234320