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13243810880 = 26541386909
BaseRepresentation
bin11000101010110010…
…01000010001000000
31021011222120022010002
430111121020101000
5204110403422010
610030100455132
7646123351346
oct142531102100
937158508102
1013243810880
115686871153
1226973aa4a8
131330a582b1
148d8cb3996
15527a621a5
hex315648440

13243810880 has 28 divisors (see below), whose sum is σ = 31536825420. Its totient is φ = 5297524224.

The previous prime is 13243810871. The next prime is 13243810897. The reversal of 13243810880 is 8801834231.

It can be written as a sum of positive squares in 2 ways, for example, as 8677295104 + 4566515776 = 93152^2 + 67576^2 .

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 3 ways as a sum of consecutive naturals, for example, 20693135 + ... + 20693774.

Almost surely, 213243810880 is an apocalyptic number.

13243810880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13243810880 is an abundant number, since it is smaller than the sum of its proper divisors (18293014540).

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

13243810880 is an equidigital number, since it uses as much as digits as its factorization.

13243810880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41386926 (or 41386916 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 13243810880 in words is "thirteen billion, two hundred forty-three million, eight hundred ten thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 41386909 82773818 165547636 206934545 331095272 413869090 662190544 827738180 1324381088 1655476360 2648762176 3310952720 6621905440 13243810880