Search a number
-
+
20123033233 = 89313722369
BaseRepresentation
bin10010101111011011…
…010001111010010001
31220221102001000010011
4102233123101322101
5312202444030413
613124442234521
71311444650242
oct225733217221
956842030104
1020123033233
118596a22786
123a971b5a41
131b89024374
14d8c790cc9
157cb97033d
hex4af6d1e91

20123033233 has 8 divisors (see below), whose sum is σ = 20414176200. Its totient is φ = 19833335808.

The previous prime is 20123033207. The next prime is 20123033237. The reversal of 20123033233 is 33233032102.

It can be written as a sum of positive squares in 4 ways, for example, as 121154049 + 20001879184 = 11007^2 + 141428^2 .

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 20123033233 - 217 = 20122902161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123033237) 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 7 ways as a sum of consecutive naturals, for example, 333328 + ... + 389041.

It is an arithmetic number, because the mean of its divisors is an integer number (2551772025).

Almost surely, 220123033233 is an apocalyptic number.

It is an amenable number.

20123033233 is a deficient number, since it is larger than the sum of its proper divisors (291142967).

20123033233 is an equidigital number, since it uses as much as digits as its factorization.

20123033233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722771.

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

Adding to 20123033233 its reverse (33233032102), we get a palindrome (53356065335).

The spelling of 20123033233 in words is "twenty billion, one hundred twenty-three million, thirty-three thousand, two hundred thirty-three".

Divisors: 1 89 313 27857 722369 64290841 226101497 20123033233