Search a number
-
+
80969000208768 = 273771371971531
BaseRepresentation
bin10010011010010000010000…
…011111101100100110000000
3101121200120010211200220000000
4102122100100133230212000
541103044003023140033
6444112351210000000
723024550210026310
oct2232202037544600
9347616124626000
1080969000208768
112388783a840061
1290b8402416000
13362446189c809
1415dccc5c9b440
159562c98d6a13
hex49a4107ec980

80969000208768 has 1024 divisors, whose sum is σ = 280096094361600. Its totient is φ = 22833640488960.

The previous prime is 80969000208713. The next prime is 80969000208773. The reversal of 80969000208768 is 86780200096908.

It is a super-3 number, since 3×809690002087683 (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 52886348163 + ... + 52886349693.

It is an arithmetic number, because the mean of its divisors is an integer number (273531342150).

Almost surely, 280969000208768 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 80969000208768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140048047180800).

80969000208768 is an abundant number, since it is smaller than the sum of its proper divisors (199127094152832).

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

80969000208768 is a wasteful number, since it uses less digits than its factorization.

80969000208768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907 (or 1877 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 80969000208768 in words is "eighty trillion, nine hundred sixty-nine billion, two hundred eight thousand, seven hundred sixty-eight".