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23451350233 = 82128564373
BaseRepresentation
bin10101110101110011…
…110011010011011001
32020112100212000201011
4111311303303103121
5341012021201413
614435015453521
71460101121323
oct256563632331
966470760634
1023451350233
119a44748593
1246659872a1
13229973c5cc
1411c681c613
15923c6833d
hex575cf34d9

23451350233 has 4 divisors (see below), whose sum is σ = 23479915428. Its totient is φ = 23422785040.

The previous prime is 23451350207. The next prime is 23451350257. The reversal of 23451350233 is 33205315432.

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 7027133584 + 16424216649 = 83828^2 + 128157^2 .

It is a cyclic number.

It is not a de Polignac number, because 23451350233 - 25 = 23451350201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23451350195 and 23451350204.

It is not an unprimeable number, because it can be changed into a prime (23451350203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14281366 + ... + 14283007.

It is an arithmetic number, because the mean of its divisors is an integer number (5869978857).

Almost surely, 223451350233 is an apocalyptic number.

It is an amenable number.

23451350233 is a deficient number, since it is larger than the sum of its proper divisors (28565195).

23451350233 is an equidigital number, since it uses as much as digits as its factorization.

23451350233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28565194.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 23451350233 its reverse (33205315432), we get a palindrome (56656665665).

The spelling of 23451350233 in words is "twenty-three billion, four hundred fifty-one million, three hundred fifty thousand, two hundred thirty-three".

Divisors: 1 821 28564373 23451350233