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23030772 = 2231919231
BaseRepresentation
bin101011111011…
…0101111110100
31121100002021120
41113312233310
521343441042
62141343540
7366521052
oct127665764
947302246
1023030772
11120003a6
127867bb0
134a04a9b
1430b71d2
15204ddec
hex15f6bf4

23030772 has 12 divisors (see below), whose sum is σ = 53738496. Its totient is φ = 7676920.

The previous prime is 23030747. The next prime is 23030773. The reversal of 23030772 is 27703032.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23030773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959604 + ... + 959627.

It is an arithmetic number, because the mean of its divisors is an integer number (4478208).

Almost surely, 223030772 is an apocalyptic number.

It is an amenable number.

23030772 is an abundant number, since it is smaller than the sum of its proper divisors (30707724).

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

23030772 is a wasteful number, since it uses less digits than its factorization.

23030772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919238 (or 1919236 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 23030772 is about 4799.0386537306. The cubic root of 23030772 is about 284.5134696897.

The spelling of 23030772 in words is "twenty-three million, thirty thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 12 1919231 3838462 5757693 7676924 11515386 23030772