Search a number
-
+
13253260420 = 2252927184319
BaseRepresentation
bin11000101011111010…
…01011010010000100
31021012122100101110001
430111331023102010
5204120313313140
610031035211044
7646266566131
oct142575132204
937178311401
1013253260420
115691135794
12269a5a6a84
1313329b643a
148da253588
155287cbe9a
hex315f4b484

13253260420 has 48 divisors (see below), whose sum is σ = 28898150400. Its totient is φ = 5099552640.

The previous prime is 13253260411. The next prime is 13253260421. The reversal of 13253260420 is 2406235231.

It is not an unprimeable number, because it can be changed into a prime (13253260421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115021 + ... + 199339.

It is an arithmetic number, because the mean of its divisors is an integer number (602044800).

Almost surely, 213253260420 is an apocalyptic number.

13253260420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13253260420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14449075200).

13253260420 is an abundant number, since it is smaller than the sum of its proper divisors (15644889980).

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

13253260420 is a wasteful number, since it uses less digits than its factorization.

13253260420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84628 (or 84626 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 13253260420 its reverse (2406235231), we get a palindrome (15659495651).

The spelling of 13253260420 in words is "thirteen billion, two hundred fifty-three million, two hundred sixty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 271 290 542 580 1084 1355 2710 5420 7859 15718 31436 39295 78590 84319 157180 168638 337276 421595 843190 1686380 2445251 4890502 9781004 12226255 22850449 24452510 45700898 48905020 91401796 114252245 228504490 457008980 662663021 1325326042 2650652084 3313315105 6626630210 13253260420