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13426785708 = 223717192292161
BaseRepresentation
bin11001000000100110…
…00111110110101100
31021122201212101101120
430200103013312230
5204444224120313
610100154340540
7653504536560
oct144023076654
937581771346
1013426785708
115770085916
12272872a750
13135c93121b
149153036a0
15538b56d23
hex3204c7dac

13426785708 has 192 divisors, whose sum is σ = 40099046400. Its totient is φ = 3404021760.

The previous prime is 13426785707. The next prime is 13426785709. The reversal of 13426785708 is 80758762431.

It is an interprime number because it is at equal distance from previous prime (13426785707) and next prime (13426785709).

It is a super-3 number, since 3×134267857083 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (13426785703) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6212148 + ... + 6214308.

It is an arithmetic number, because the mean of its divisors is an integer number (208849200).

Almost surely, 213426785708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13426785708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20049523200).

13426785708 is an abundant number, since it is smaller than the sum of its proper divisors (26672260692).

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

13426785708 is a wasteful number, since it uses less digits than its factorization.

13426785708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440 (or 2438 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 13426785708 in words is "thirteen billion, four hundred twenty-six million, seven hundred eighty-five thousand, seven hundred eight".