Search a number
-
+
13686807168 = 273417196167
BaseRepresentation
bin11001011111100110…
…00001101010000000
31022022212010211210000
430233303001222000
5211012310312133
610142043440000
7663112640616
oct145763015200
938285124700
1013686807168
115893933891
12279b826000
1313a1772188
1493ba6b6b6
155518ba413
hex32fcc1a80

13686807168 has 640 divisors, whose sum is σ = 46830484800. Its totient is φ = 3941498880.

The previous prime is 13686807089. The next prime is 13686807181. The reversal of 13686807168 is 86170868631.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 204280671 + ... + 204280737.

Almost surely, 213686807168 is an apocalyptic number.

13686807168 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 13686807168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23415242400).

13686807168 is an abundant number, since it is smaller than the sum of its proper divisors (33143677632).

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

13686807168 is a wasteful number, since it uses less digits than its factorization.

13686807168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 13686807168 in words is "thirteen billion, six hundred eighty-six million, eight hundred seven thousand, one hundred sixty-eight".