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23889973 = 198315149
BaseRepresentation
bin101101100100…
…0100000110101
31122221201212211
41123020200311
522103434343
62212013421
7410030032
oct133104065
948851784
1023889973
1112537988
128001271
134c45ba3
14325c389
15216d79d
hex16c8835

23889973 has 8 divisors (see below), whose sum is σ = 25452000. Its totient is φ = 22358448.

The previous prime is 23889953. The next prime is 23889991. The reversal of 23889973 is 37998832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23889973 - 29 = 23889461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23889953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5998 + ... + 9151.

It is an arithmetic number, because the mean of its divisors is an integer number (3181500).

Almost surely, 223889973 is an apocalyptic number.

It is an amenable number.

23889973 is a deficient number, since it is larger than the sum of its proper divisors (1562027).

23889973 is a wasteful number, since it uses less digits than its factorization.

23889973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15251.

The product of its digits is 653184, while the sum is 49.

The square root of 23889973 is about 4887.7370019264. The cubic root of 23889973 is about 288.0084432003.

The spelling of 23889973 in words is "twenty-three million, eight hundred eighty-nine thousand, nine hundred seventy-three".

Divisors: 1 19 83 1577 15149 287831 1257367 23889973