Search a number
-
+
13442001340 = 2251783376949
BaseRepresentation
bin11001000010011010…
…01010100110111100
31021200210111102022111
430201031022212330
5210012123020330
610101500423404
7654051061165
oct144115124674
937623442274
1013442001340
115778728619
122731847b64
131362b2aa61
1491734476c
1553a16032a
hex32134a9bc

13442001340 has 24 divisors (see below), whose sum is σ = 28244109600. Its totient is φ = 5373770688.

The previous prime is 13442001319. The next prime is 13442001341. The reversal of 13442001340 is 4310024431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13442001341) 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, 152815 + ... + 224134.

It is an arithmetic number, because the mean of its divisors is an integer number (1176837900).

Almost surely, 213442001340 is an apocalyptic number.

13442001340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13442001340 is an abundant number, since it is smaller than the sum of its proper divisors (14802108260).

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

13442001340 is a wasteful number, since it uses less digits than its factorization.

13442001340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378741 (or 378739 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 13442001340 its reverse (4310024431), we get a palindrome (17752025771).

The spelling of 13442001340 in words is "thirteen billion, four hundred forty-two million, one thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 1783 3566 7132 8915 17830 35660 376949 753898 1507796 1884745 3769490 7538980 672100067 1344200134 2688400268 3360500335 6721000670 13442001340