Search a number
-
+
73865269680000 = 27354378318161
BaseRepresentation
bin10000110010111000011001…
…001010010001011110000000
3100200112110011122110001221220
4100302320121022101132000
534140202033014230000
6421033123023115040
721362406145563321
oct2062703112213600
9320473148401856
1073865269680000
11215990a3086197
12834b701442a80
13322a6079122a6
141435153398448
158816127061a0
hex432e19291780

73865269680000 has 320 divisors, whose sum is σ = 251803740072720. Its totient is φ = 19165040640000.

The previous prime is 73865269679969. The next prime is 73865269680001. The reversal of 73865269680000 is 8696256837.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73865269680001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4720920 + ... + 13039080.

Almost surely, 273865269680000 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 73865269680000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125901870036360).

73865269680000 is an abundant number, since it is smaller than the sum of its proper divisors (177938470392720).

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

73865269680000 is an equidigital number, since it uses as much as digits as its factorization.

73865269680000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8318235 (or 8318208 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 60.

The spelling of 73865269680000 in words is "seventy-three trillion, eight hundred sixty-five billion, two hundred sixty-nine million, six hundred eighty thousand".