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20400232341 = 3193175115373
BaseRepresentation
bin10010111111111100…
…101101011110010101
31221122201122011210210
4102333330231132111
5313234424413331
613212143440033
71321352054016
oct227774553625
957581564723
1020400232341
118719443555
123b53bb6019
131c0159abc8
14db750b00d
157e5e78446
hex4bff2d795

20400232341 has 32 divisors (see below), whose sum is σ = 29596794880. Its totient is φ = 12451320000.

The previous prime is 20400232289. The next prime is 20400232343. The reversal of 20400232341 is 14323200402.

It is not a de Polignac number, because 20400232341 - 27 = 20400232213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20400232343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1319331 + ... + 1334703.

It is an arithmetic number, because the mean of its divisors is an integer number (924899840).

Almost surely, 220400232341 is an apocalyptic number.

It is an amenable number.

20400232341 is a deficient number, since it is larger than the sum of its proper divisors (9196562539).

20400232341 is a wasteful number, since it uses less digits than its factorization.

20400232341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16177.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20400232341 its reverse (14323200402), we get a palindrome (34723432743).

The spelling of 20400232341 in words is "twenty billion, four hundred million, two hundred thirty-two thousand, three hundred forty-one".

Divisors: 1 3 19 31 57 93 589 751 1767 2253 14269 15373 23281 42807 46119 69843 292087 442339 476563 876261 1327017 1429689 9054697 11545123 27164091 34635369 219357337 357898813 658072011 1073696439 6800077447 20400232341