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16331120311 = 1117921113929
BaseRepresentation
bin11110011010110100…
…10001111010110111
31120011010212212110211
433031122101322313
5231421231322221
611300304330251
71115462142442
oct171532217267
946133785424
1016331120311
116a20545450
1231b9313987
13170355bbcc
14b0cd26659
15658b006e1
hex3cd691eb7

16331120311 has 16 divisors (see below), whose sum is σ = 17928345600. Its totient is φ = 14752782400.

The previous prime is 16331120303. The next prime is 16331120327. The reversal of 16331120311 is 11302113361.

It is a cyclic number.

It is not a de Polignac number, because 16331120311 - 23 = 16331120303 is a prime.

It is a super-2 number, since 2×163311203112 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16331120381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4154595 + ... + 4158523.

It is an arithmetic number, because the mean of its divisors is an integer number (1120521600).

Almost surely, 216331120311 is an apocalyptic number.

16331120311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16331120311 is a deficient number, since it is larger than the sum of its proper divisors (1597225289).

16331120311 is a wasteful number, since it uses less digits than its factorization.

16331120311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6230.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 16331120311 its reverse (11302113361), we get a palindrome (27633233672).

The spelling of 16331120311 in words is "sixteen billion, three hundred thirty-one million, one hundred twenty thousand, three hundred eleven".

Divisors: 1 11 179 1969 2111 3929 23221 43219 377869 703291 4156559 7736201 8294119 91235309 1484647301 16331120311