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23212983 = 321313631
BaseRepresentation
bin101100010001…
…1001110110111
31121200100020010
41120203032313
521420303413
62145311303
7401210223
oct130431667
947610203
1023212983
1112115292
127935533
134a699c1
143123783
152087dc3
hex16233b7

23212983 has 8 divisors (see below), whose sum is σ = 30973696. Its totient is φ = 15463800.

The previous prime is 23212979. The next prime is 23212997. The reversal of 23212983 is 38921232.

It is a happy number.

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

It is not a de Polignac number, because 23212983 - 22 = 23212979 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23212983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212883) 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, 4578 + ... + 8208.

It is an arithmetic number, because the mean of its divisors is an integer number (3871712).

Almost surely, 223212983 is an apocalyptic number.

23212983 is a deficient number, since it is larger than the sum of its proper divisors (7760713).

23212983 is a wasteful number, since it uses less digits than its factorization.

23212983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5765.

The product of its digits is 5184, while the sum is 30.

The square root of 23212983 is about 4817.9853673501. The cubic root of 23212983 is about 285.2618215711.

The spelling of 23212983 in words is "twenty-three million, two hundred twelve thousand, nine hundred eighty-three".

Divisors: 1 3 2131 3631 6393 10893 7737661 23212983