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16102211111 = 72979321237
BaseRepresentation
bin11101111111100010…
…00011111000100111
31112120012011002002022
432333301003320213
5230434131223421
611221450133355
71110012351620
oct167761037047
945505132068
1016102211111
116913307598
12315472125b
131697cc228c
14aca77aa47
156439857ab
hex3bfc43e27

16102211111 has 8 divisors (see below), whose sum is σ = 19037097120. Its totient is φ = 13325967648.

The previous prime is 16102211107. The next prime is 16102211131. The reversal of 16102211111 is 11111220161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16102211111 - 22 = 16102211107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16102211111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16102211101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39660416 + ... + 39660821.

It is an arithmetic number, because the mean of its divisors is an integer number (2379637140).

Almost surely, 216102211111 is an apocalyptic number.

16102211111 is a deficient number, since it is larger than the sum of its proper divisors (2934886009).

16102211111 is an equidigital number, since it uses as much as digits as its factorization.

16102211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79321273.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 16102211111 its reverse (11111220161), we get a palindrome (27213431272).

The spelling of 16102211111 in words is "sixteen billion, one hundred two million, two hundred eleven thousand, one hundred eleven".

Divisors: 1 7 29 203 79321237 555248659 2300315873 16102211111