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20123232233 = 136126396487
BaseRepresentation
bin10010101111011100…
…000010011111101001
31220221102102010002112
4102233130002133221
5312203021412413
613124450412105
71311446436356
oct225734023751
956842363075
1020123232233
118597049245
123a97291035
131b89093b10
14d8c80362d
157cb9ae2a8
hex4af7027e9

20123232233 has 16 divisors (see below), whose sum is σ = 22110418176. Its totient is φ = 18201119040.

The previous prime is 20123232229. The next prime is 20123232257. The reversal of 20123232233 is 33223232102.

It is not a de Polignac number, because 20123232233 - 22 = 20123232229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20123232199 and 20123232208.

It is not an unprimeable number, because it can be changed into a prime (20123232203) 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 15 ways as a sum of consecutive naturals, for example, 160316 + ... + 256802.

It is an arithmetic number, because the mean of its divisors is an integer number (1381901136).

Almost surely, 220123232233 is an apocalyptic number.

It is an amenable number.

20123232233 is a deficient number, since it is larger than the sum of its proper divisors (1987185943).

20123232233 is a wasteful number, since it uses less digits than its factorization.

20123232233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96824.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 20123232233 its reverse (33223232102), we get a palindrome (53346464335).

The spelling of 20123232233 in words is "twenty billion, one hundred twenty-three million, two hundred thirty-two thousand, two hundred thirty-three".

Divisors: 1 13 61 263 793 3419 16043 96487 208559 1254331 5885707 25376081 76514191 329889053 1547940941 20123232233