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16938679711 = 43139300881
BaseRepresentation
bin11111100011001111…
…11011110110011111
31121201111010002021211
433301213323312133
5234142300222321
611440450405251
71136520254602
oct176147736637
947644102254
1016938679711
117202496858
123348890827
13179c3a3505
14b698ba339
156921130e1
hex3f19fbd9f

16938679711 has 4 divisors (see below), whose sum is σ = 16977981024. Its totient is φ = 16899378400.

The previous prime is 16938679601. The next prime is 16938679739. The reversal of 16938679711 is 11797683961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16938679711 - 227 = 16804461983 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 (16938679781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19650010 + ... + 19650871.

It is an arithmetic number, because the mean of its divisors is an integer number (4244495256).

Almost surely, 216938679711 is an apocalyptic number.

16938679711 is a deficient number, since it is larger than the sum of its proper divisors (39301313).

16938679711 is an equidigital number, since it uses as much as digits as its factorization.

16938679711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39301312.

The product of its digits is 3429216, while the sum is 58.

The spelling of 16938679711 in words is "sixteen billion, nine hundred thirty-eight million, six hundred seventy-nine thousand, seven hundred eleven".

Divisors: 1 431 39300881 16938679711