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23022973 = 229100537
BaseRepresentation
bin101011111010…
…0110101111101
31121022200120201
41113310311331
521343213343
62141243501
7366456241
oct127646575
947280521
1023022973
1111aa5556
127863591
134a0137c
1430b4421
15204b94d
hex15f4d7d

23022973 has 4 divisors (see below), whose sum is σ = 23123740. Its totient is φ = 22922208.

The previous prime is 23022953. The next prime is 23023001. The reversal of 23022973 is 37922032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15824484 + 7198489 = 3978^2 + 2683^2 .

It is a cyclic number.

It is not a de Polignac number, because 23022973 - 213 = 23014781 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 (23022953) 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, 50040 + ... + 50497.

It is an arithmetic number, because the mean of its divisors is an integer number (5780935).

Almost surely, 223022973 is an apocalyptic number.

It is an amenable number.

23022973 is a deficient number, since it is larger than the sum of its proper divisors (100767).

23022973 is a wasteful number, since it uses less digits than its factorization.

23022973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100766.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 23022973 is about 4798.2260263560. The cubic root of 23022973 is about 284.4813507625.

The spelling of 23022973 in words is "twenty-three million, twenty-two thousand, nine hundred seventy-three".

Divisors: 1 229 100537 23022973