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13419479391 = 319235429463
BaseRepresentation
bin11000111111101110…
…10000000101011111
31021122020010012000020
430133313100011133
5204440341320031
610055334003223
7653355456423
oct143767200537
937566105006
1013419479391
115766a4553a
1227261a6513
13135b273766
14914360b83
155381b2096
hex31fdd015f

13419479391 has 8 divisors (see below), whose sum is σ = 18834357120. Its totient is φ = 8475460632.

The previous prime is 13419479383. The next prime is 13419479393. The reversal of 13419479391 is 19397491431.

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

It is not a de Polignac number, because 13419479391 - 23 = 13419479383 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13419479393) 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, 117714675 + ... + 117714788.

It is an arithmetic number, because the mean of its divisors is an integer number (2354294640).

Almost surely, 213419479391 is an apocalyptic number.

13419479391 is a deficient number, since it is larger than the sum of its proper divisors (5414877729).

13419479391 is a wasteful number, since it uses less digits than its factorization.

13419479391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235429485.

The product of its digits is 734832, while the sum is 51.

The spelling of 13419479391 in words is "thirteen billion, four hundred nineteen million, four hundred seventy-nine thousand, three hundred ninety-one".

Divisors: 1 3 19 57 235429463 706288389 4473159797 13419479391