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13829847019 = 63972161927
BaseRepresentation
bin11001110000101001…
…01011011111101011
31022200211022000120021
430320110223133223
5211310420101034
610204153341311
7666500521462
oct147024533753
938624260507
1013829847019
11595765183a
12281b707837
1313c52a5041
14952a639d9
1555e2226b4
hex33852b7eb

13829847019 has 4 divisors (see below), whose sum is σ = 13832015344. Its totient is φ = 13827678696.

The previous prime is 13829847011. The next prime is 13829847023. The reversal of 13829847019 is 91074892831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91074892831 = 137005760987.

It is a cyclic number.

It is not a de Polignac number, because 13829847019 - 23 = 13829847011 is a prime.

It is a super-2 number, since 2×138298470192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13829847011) 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, 1074567 + ... + 1087360.

It is an arithmetic number, because the mean of its divisors is an integer number (3458003836).

Almost surely, 213829847019 is an apocalyptic number.

13829847019 is a deficient number, since it is larger than the sum of its proper divisors (2168325).

13829847019 is an equidigital number, since it uses as much as digits as its factorization.

13829847019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168324.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 13829847019 in words is "thirteen billion, eight hundred twenty-nine million, eight hundred forty-seven thousand, nineteen".

Divisors: 1 6397 2161927 13829847019