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23216133 = 37738711
BaseRepresentation
bin101100010010…
…0000000000101
31121200111112210
41120210000011
521420404013
62145334033
7401222343
oct130440005
947614483
1023216133
1112117696
127937319
134a6b275
143124993
152088cc3
hex1624005

23216133 has 4 divisors (see below), whose sum is σ = 30954848. Its totient is φ = 15477420.

The previous prime is 23216107. The next prime is 23216143. The reversal of 23216133 is 33161232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23216133 - 26 = 23216069 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 (23216143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3869353 + ... + 3869358.

It is an arithmetic number, because the mean of its divisors is an integer number (7738712).

Almost surely, 223216133 is an apocalyptic number.

It is an amenable number.

23216133 is a deficient number, since it is larger than the sum of its proper divisors (7738715).

23216133 is an equidigital number, since it uses as much as digits as its factorization.

23216133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7738714.

The product of its digits is 648, while the sum is 21.

The square root of 23216133 is about 4818.3122563819. The cubic root of 23216133 is about 285.2747243232.

Adding to 23216133 its reverse (33161232), we get a palindrome (56377365).

The spelling of 23216133 in words is "twenty-three million, two hundred sixteen thousand, one hundred thirty-three".

Divisors: 1 3 7738711 23216133