Search a number
-
+
13427249444 = 2279747910321
BaseRepresentation
bin11001000000101001…
…11001000100100100
31021122202201221111222
430200110321010210
5204444333440234
610100212315512
7653511510560
oct144024710444
937582657458
1013427249444
115770372274
122728912b98
13135ca6431b
149153c46a0
15538be942e
hex320539124

13427249444 has 48 divisors (see below), whose sum is σ = 27190625280. Its totient is φ = 5682769920.

The previous prime is 13427249411. The next prime is 13427249461. The reversal of 13427249444 is 44494272431.

It is a junction number, because it is equal to n+sod(n) for n = 13427249395 and 13427249404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1295804 + ... + 1306124.

It is an arithmetic number, because the mean of its divisors is an integer number (566471360).

Almost surely, 213427249444 is an apocalyptic number.

13427249444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13427249444 is an abundant number, since it is smaller than the sum of its proper divisors (13763375836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13427249444 is a wasteful number, since it uses less digits than its factorization.

13427249444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10908 (or 10906 counting only the distinct ones).

The product of its digits is 774144, while the sum is 44.

The spelling of 13427249444 in words is "thirteen billion, four hundred twenty-seven million, two hundred forty-nine thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 28 97 194 388 479 679 958 1358 1916 2716 3353 6706 10321 13412 20642 41284 46463 72247 92926 144494 185852 288988 325241 650482 1001137 1300964 2002274 4004548 4943759 7007959 9887518 14015918 19775036 28031836 34606313 69212626 138425252 479544623 959089246 1918178492 3356812361 6713624722 13427249444