Search a number
-
+
6847050129920 = 2957111310212617
BaseRepresentation
bin110001110100011001111…
…1111011010001000000000
3220020120102200210112111022
41203220303333122020000
51344140224313124140
622321254051005012
71304453166551510
oct143506377321000
926216380715438
106847050129920
1121aa8aa329140
12927007299768
133a889bb97220
14199582bab840
15bd192b7e0b5
hex63a33fda200

6847050129920 has 640 divisors, whose sum is σ = 22072254285312. Its totient is φ = 1967298969600.

The previous prime is 6847050129877. The next prime is 6847050129961. The reversal of 6847050129920 is 299210507486.

It is a tau number, because it is divible by the number of its divisors (640).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2616372452 + ... + 2616375068.

Almost surely, 26847050129920 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 6847050129920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11036127142656).

6847050129920 is an abundant number, since it is smaller than the sum of its proper divisors (15225204155392).

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

6847050129920 is a wasteful number, since it uses less digits than its factorization.

6847050129920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3692 (or 3676 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 6847050129920 in words is "six trillion, eight hundred forty-seven billion, fifty million, one hundred twenty-nine thousand, nine hundred twenty".