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13871130 = 2357135081
BaseRepresentation
bin110100111010…
…100000011010
3222002201121120
4310322200122
512022334010
61213150110
7225621420
oct64724032
928081546
1013871130
117914649
12478b336
132b48890
141bb1110
15133ee70
hexd3a81a

13871130 has 64 divisors (see below), whose sum is σ = 40981248. Its totient is φ = 2926080.

The previous prime is 13871129. The next prime is 13871141. The reversal of 13871130 is 3117831.

It is a self number, because there is not a number n which added to its sum of digits gives 13871130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190 + ... + 5270.

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

Almost surely, 213871130 is an apocalyptic number.

13871130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13871130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20490624).

13871130 is an abundant number, since it is smaller than the sum of its proper divisors (27110118).

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

13871130 is a wasteful number, since it uses less digits than its factorization.

13871130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 13871130 is about 3724.3965954232. The cubic root of 13871130 is about 240.2724336881.

Adding to 13871130 its reverse (3117831), we get a palindrome (16988961).

The spelling of 13871130 in words is "thirteen million, eight hundred seventy-one thousand, one hundred thirty".

Divisors: 1 2 3 5 6 7 10 13 14 15 21 26 30 35 39 42 65 70 78 91 105 130 182 195 210 273 390 455 546 910 1365 2730 5081 10162 15243 25405 30486 35567 50810 66053 71134 76215 106701 132106 152430 177835 198159 213402 330265 355670 396318 462371 533505 660530 924742 990795 1067010 1387113 1981590 2311855 2774226 4623710 6935565 13871130