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23033202331 = 178712889313
BaseRepresentation
bin10101011100111000…
…101100011010011011
32012110020000220121211
4111130320230122123
5334132444433311
614325321243551
71443532663246
oct253470543233
965406026554
1023033202331
11984a707907
1245699335b7
132230c15909
14118709225d
158ec1bc821
hex55ce2c69b

23033202331 has 4 divisors (see below), whose sum is σ = 23046093432. Its totient is φ = 23020311232.

The previous prime is 23033202329. The next prime is 23033202391. The reversal of 23033202331 is 13320233032.

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

It is a cyclic number.

It is not a de Polignac number, because 23033202331 - 21 = 23033202329 is a prime.

It is a super-2 number, since 2×230332023312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23033202391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6442870 + ... + 6446443.

It is an arithmetic number, because the mean of its divisors is an integer number (5761523358).

Almost surely, 223033202331 is an apocalyptic number.

23033202331 is a deficient number, since it is larger than the sum of its proper divisors (12891101).

23033202331 is a wasteful number, since it uses less digits than its factorization.

23033202331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12891100.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 23033202331 its reverse (13320233032), we get a palindrome (36353435363).

The spelling of 23033202331 in words is "twenty-three billion, thirty-three million, two hundred two thousand, three hundred thirty-one".

Divisors: 1 1787 12889313 23033202331