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20623434214 = 2191136947737
BaseRepresentation
bin10011001101010000…
…001010000111100110
31222020021122000012211
4103031100022013212
5314214044343324
613250235434034
71330032204235
oct231520120746
958207560184
1020623434214
118823433409
123bb68b591a
131c388b9b16
14dd900cb1c
1580a867294
hex4cd40a1e6

20623434214 has 16 divisors (see below), whose sum is σ = 32566863600. Its totient is φ = 9767931264.

The previous prime is 20623434203. The next prime is 20623434229. The reversal of 20623434214 is 41243432602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408154 + ... + 455890.

It is an arithmetic number, because the mean of its divisors is an integer number (2035428975).

Almost surely, 220623434214 is an apocalyptic number.

20623434214 is a deficient number, since it is larger than the sum of its proper divisors (11943429386).

20623434214 is a wasteful number, since it uses less digits than its factorization.

20623434214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59127.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 20623434214 its reverse (41243432602), we get a palindrome (61866866816).

The spelling of 20623434214 in words is "twenty billion, six hundred twenty-three million, four hundred thirty-four thousand, two hundred fourteen".

Divisors: 1 2 19 38 11369 22738 47737 95474 216011 432022 907003 1814006 542721953 1085443906 10311717107 20623434214