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13143234220 = 2259712795297
BaseRepresentation
bin11000011110110010…
…11101011010101100
31020220222022110212121
430033121131122230
5203404131443340
610012105042324
7643462435054
oct141731353254
936828273777
1013143234220
115635016446
1226697863a4
131315c7218c
148c97b2564
1551dce694a
hex30f65d6ac

13143234220 has 48 divisors (see below), whose sum is σ = 27912407040. Its totient is φ = 5198045184.

The previous prime is 13143234199. The next prime is 13143234229. The reversal of 13143234220 is 2243234131.

It is not an unprimeable number, because it can be changed into a prime (13143234229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2478612 + ... + 2483908.

It is an arithmetic number, because the mean of its divisors is an integer number (581508480).

Almost surely, 213143234220 is an apocalyptic number.

13143234220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13143234220 is an abundant number, since it is smaller than the sum of its proper divisors (14769172820).

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

13143234220 is a wasteful number, since it uses less digits than its factorization.

13143234220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6682 (or 6680 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 13143234220 its reverse (2243234131), we get a palindrome (15386468351).

The spelling of 13143234220 in words is "thirteen billion, one hundred forty-three million, two hundred thirty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 97 194 388 485 970 1279 1940 2558 5116 5297 6395 10594 12790 21188 25580 26485 52970 105940 124063 248126 496252 513809 620315 1027618 1240630 2055236 2481260 2569045 5138090 6774863 10276180 13549726 27099452 33874315 67748630 135497260 657161711 1314323422 2628646844 3285808555 6571617110 13143234220