Search a number
-
+
13118211939 = 372191346649
BaseRepresentation
bin11000011011110100…
…00000011101100011
31020212020020012202110
430031322000131203
5203331230240224
610005412450403
7643036650600
oct141572003543
936766205673
1013118211939
115621985878
122661319a03
131310a20ab1
148c633b6a7
1551ba02929
hex30de80763

13118211939 has 24 divisors (see below), whose sum is σ = 20357686800. Its totient is φ = 7492041984.

The previous prime is 13118211919. The next prime is 13118211947. The reversal of 13118211939 is 93911281131.

It is not a de Polignac number, because 13118211939 - 25 = 13118211907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13118211897 and 13118211906.

It is not an unprimeable number, because it can be changed into a prime (13118211919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 257887 + ... + 304535.

It is an arithmetic number, because the mean of its divisors is an integer number (848236950).

Almost surely, 213118211939 is an apocalyptic number.

13118211939 is a deficient number, since it is larger than the sum of its proper divisors (7239474861).

13118211939 is a wasteful number, since it uses less digits than its factorization.

13118211939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48579 (or 48572 counting only the distinct ones).

The product of its digits is 11664, while the sum is 39.

The spelling of 13118211939 in words is "thirteen billion, one hundred eighteen million, two hundred eleven thousand, nine hundred thirty-nine".

Divisors: 1 3 7 21 49 147 1913 5739 13391 40173 46649 93737 139947 281211 326543 979629 2285801 6857403 89239537 267718611 624676759 1874030277 4372737313 13118211939