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319113109 = 7231982069
BaseRepresentation
bin10011000001010…
…100011110010101
3211020110121220001
4103001110132111
51123143104414
651355411301
710623262630
oct2301243625
9736417801
10319113109
11154149447
128aa53b31
1351160633
143054ac17
151d037074
hex13054795

319113109 has 8 divisors (see below), whose sum is σ = 380557440. Its totient is φ = 261632976.

The previous prime is 319113107. The next prime is 319113167. The reversal of 319113109 is 901311913.

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

It is a cyclic number.

It is not a de Polignac number, because 319113109 - 21 = 319113107 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 (319113107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 990874 + ... + 991195.

It is an arithmetic number, because the mean of its divisors is an integer number (47569680).

Almost surely, 2319113109 is an apocalyptic number.

It is an amenable number.

319113109 is a deficient number, since it is larger than the sum of its proper divisors (61444331).

319113109 is a wasteful number, since it uses less digits than its factorization.

319113109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982099.

The product of its (nonzero) digits is 729, while the sum is 28.

The square root of 319113109 is about 17863.7372629582. The cubic root of 319113109 is about 683.3578930429.

It can be divided in two parts, 31911 and 3109, that multiplied together give a palindrome (99211299).

The spelling of 319113109 in words is "three hundred nineteen million, one hundred thirteen thousand, one hundred nine".

Divisors: 1 7 23 161 1982069 13874483 45587587 319113109