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13260081800 = 2352729476949
BaseRepresentation
bin11000101100101110…
…01100101010001000
31021020010011221121202
430112113030222020
5204124040104200
610031441323332
7646411556420
oct142627145210
937203157552
1013260081800
115694a74799
1226a0936548
131334234264
148db10b480
155291c81d5
hex3165cca88

13260081800 has 192 divisors, whose sum is σ = 37229760000. Its totient is φ = 4295531520.

The previous prime is 13260081773. The next prime is 13260081827. The reversal of 13260081800 is 818006231.

It is an interprime number because it is at equal distance from previous prime (13260081773) and next prime (13260081827).

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1904726 + ... + 1911674.

It is an arithmetic number, because the mean of its divisors is an integer number (193905000).

Almost surely, 213260081800 is an apocalyptic number.

13260081800 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 13260081800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18614880000).

13260081800 is an abundant number, since it is smaller than the sum of its proper divisors (23969678200).

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

13260081800 is a wasteful number, since it uses less digits than its factorization.

13260081800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7048 (or 7039 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 13260081800 in words is "thirteen billion, two hundred sixty million, eighty-one thousand, eight hundred".