Search a number
-
+
23212303 = 431932797
BaseRepresentation
bin101100010001…
…1000100001111
31121200022021221
41120203010033
521420243203
62145304211
7401205232
oct130430417
947608257
1023212303
1112114824
127935067
134a695ba
143123419
152087abd
hex162310f

23212303 has 8 divisors (see below), whose sum is σ = 23883728. Its totient is φ = 22546944.

The previous prime is 23212297. The next prime is 23212331. The reversal of 23212303 is 30321232.

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 23212303 - 25 = 23212271 is a prime.

It is a super-3 number, since 3×232123033 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212373) 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, 6901 + ... + 9697.

It is an arithmetic number, because the mean of its divisors is an integer number (2985466).

Almost surely, 223212303 is an apocalyptic number.

23212303 is a deficient number, since it is larger than the sum of its proper divisors (671425).

23212303 is a wasteful number, since it uses less digits than its factorization.

23212303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 23212303 is about 4817.9147979183. The cubic root of 23212303 is about 285.2590360619.

Adding to 23212303 its reverse (30321232), we get a palindrome (53533535).

It can be divided in two parts, 2321 and 2303, that added together give a square (4624 = 682).

The spelling of 23212303 in words is "twenty-three million, two hundred twelve thousand, three hundred three".

Divisors: 1 43 193 2797 8299 120271 539821 23212303