Search a number
-
+
13113025240 = 235726690319
BaseRepresentation
bin11000011011001100…
…01110001011011000
31020211212110200221111
430031212032023120
5203323413301430
610005105350104
7642644606200
oct141546161330
936755420844
1013113025240
115619a62a47
12265b638334
13130c926043
148c578b400
1551b32ac2a
hex30d98e2d8

13113025240 has 48 divisors (see below), whose sum is σ = 34321341600. Its totient is φ = 4495893696.

The previous prime is 13113025217. The next prime is 13113025241. The reversal of 13113025240 is 4252031131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113025241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3343200 + ... + 3347119.

It is an arithmetic number, because the mean of its divisors is an integer number (715027950).

Almost surely, 213113025240 is an apocalyptic number.

13113025240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13113025240 is an abundant number, since it is smaller than the sum of its proper divisors (21208316360).

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

13113025240 is a wasteful number, since it uses less digits than its factorization.

13113025240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6690344 (or 6690333 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 13113025240 its reverse (4252031131), we get a palindrome (17365056371).

The spelling of 13113025240 in words is "thirteen billion, one hundred thirteen million, twenty-five thousand, two hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 140 196 245 280 392 490 980 1960 6690319 13380638 26761276 33451595 46832233 53522552 66903190 93664466 133806380 187328932 234161165 267612760 327825631 374657864 468322330 655651262 936644660 1311302524 1639128155 1873289320 2622605048 3278256310 6556512620 13113025240