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13270660 = 22513431187
BaseRepresentation
bin110010100111…
…111010000100
3220222012220221
4302213322010
511344130120
61152234124
7220540654
oct62477204
926865827
1013270660
117544497
12453b944
132998480
141a96364
1512720aa
hexca7e84

13270660 has 48 divisors (see below), whose sum is σ = 30735936. Its totient is φ = 4781952.

The previous prime is 13270651. The next prime is 13270669. The reversal of 13270660 is 6607231.

13270660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13270651) and next prime (13270669).

It is a super-2 number, since 2×132706602 = 352220833671200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13270669) 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, 10587 + ... + 11773.

It is an arithmetic number, because the mean of its divisors is an integer number (640332).

Almost surely, 213270660 is an apocalyptic number.

13270660 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 13270660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15367968).

13270660 is an abundant number, since it is smaller than the sum of its proper divisors (17465276).

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

13270660 is a wasteful number, since it uses less digits than its factorization.

13270660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252 (or 1250 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 13270660 is about 3642.8917085195. The cubic root of 13270660 is about 236.7540993712.

Adding to 13270660 its reverse (6607231), we get a palindrome (19877891).

The spelling of 13270660 in words is "thirteen million, two hundred seventy thousand, six hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 43 52 65 86 130 172 215 260 430 559 860 1118 1187 2236 2374 2795 4748 5590 5935 11180 11870 15431 23740 30862 51041 61724 77155 102082 154310 204164 255205 308620 510410 663533 1020820 1327066 2654132 3317665 6635330 13270660