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20233315255 = 5171021233143
BaseRepresentation
bin10010110101111111…
…111110001110110111
31221020002112220121111
4102311333332032313
5312414212042010
613143422055451
71314254225206
oct226577761667
957202486544
1020233315255
1186431a724a
123b0811a587
131ba5b27bba
14d9d29b23d
157d64a658a
hex4b5ffe3b7

20233315255 has 16 divisors (see below), whose sum is σ = 25733502144. Its totient is φ = 15219509760.

The previous prime is 20233315247. The next prime is 20233315301. The reversal of 20233315255 is 55251333202.

It is not a de Polignac number, because 20233315255 - 23 = 20233315247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29787 + ... + 203356.

It is an arithmetic number, because the mean of its divisors is an integer number (1608343884).

Almost surely, 220233315255 is an apocalyptic number.

20233315255 is a deficient number, since it is larger than the sum of its proper divisors (5500186889).

20233315255 is a wasteful number, since it uses less digits than its factorization.

20233315255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234186.

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 20233315255 its reverse (55251333202), we get a palindrome (75484648457).

The spelling of 20233315255 in words is "twenty billion, two hundred thirty-three million, three hundred fifteen thousand, two hundred fifty-five".

Divisors: 1 5 17 85 1021 5105 17357 86785 233143 1165715 3963431 19817155 238039003 1190195015 4046663051 20233315255