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13253120441 = 1121792412539
BaseRepresentation
bin11000101011111001…
…01001000110111001
31021012122002021102122
430111330221012321
5204120244323231
610031032211025
7646265444051
oct142574510671
937178067378
1013253120441
11569104a600
12269a539a75
131332967802
148da218561
155287a077b
hex315f291b9

13253120441 has 24 divisors (see below), whose sum is σ = 14715439200. Its totient is φ = 11926569600.

The previous prime is 13253120383. The next prime is 13253120453. The reversal of 13253120441 is 14402135231.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-13253120441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13253120441.

It is not an unprimeable number, because it can be changed into a prime (13253120471) 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, 5218550 + ... + 5221088.

It is an arithmetic number, because the mean of its divisors is an integer number (613143300).

Almost surely, 213253120441 is an apocalyptic number.

13253120441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13253120441 is a deficient number, since it is larger than the sum of its proper divisors (1462318759).

13253120441 is a wasteful number, since it uses less digits than its factorization.

13253120441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981 (or 2970 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 13253120441 its reverse (14402135231), we get a palindrome (27655255672).

The spelling of 13253120441 in words is "thirteen billion, two hundred fifty-three million, one hundred twenty thousand, four hundred forty-one".

Divisors: 1 11 121 179 241 1969 2539 2651 21659 27929 29161 43139 307219 454481 474529 611899 4999291 5219819 6730889 54992201 74039779 109529921 1204829131 13253120441