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13726807488 = 2632171989829
BaseRepresentation
bin11001100100010111…
…00111010111000000
31022102122102001220100
430302023213113000
5211103030314423
610150033042400
7664106636622
oct146213472700
938378361810
1013726807488
1159044746a9
1227b10b6400
1313a9b38bc4
149430c0c12
1555516c343
hex3322e75c0

13726807488 has 336 divisors, whose sum is σ = 44398692000. Its totient is φ = 4029087744.

The previous prime is 13726807477. The next prime is 13726807511. The reversal of 13726807488 is 88470862731.

It is a happy number.

13726807488 is a `hidden beast` number, since 13 + 72 + 6 + 80 + 7 + 488 = 666.

It is a super-2 number, since 2×137268074882 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 16557858 + ... + 16558686.

Almost surely, 213726807488 is an apocalyptic number.

13726807488 is a gapful number since it is divisible by the number (18) 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 13726807488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22199346000).

13726807488 is an abundant number, since it is smaller than the sum of its proper divisors (30671884512).

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

13726807488 is a wasteful number, since it uses less digits than its factorization.

13726807488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972 (or 959 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 13726807488 in words is "thirteen billion, seven hundred twenty-six million, eight hundred seven thousand, four hundred eighty-eight".