Search a number
-
+
6880048011520 = 2851719232961409
BaseRepresentation
bin110010000011110001011…
…0100010101100100000000
3220100201121101010121022021
41210013202310111210000
51400210314242332040
622344352254051224
71310032001121115
oct144074264254400
926321541117267
106880048011520
1122128a2815a72
129314961a9b14
133aba2a381558
1419add342a90c
15bde74a7e24a
hex641e2d15900

6880048011520 has 1152 divisors, whose sum is σ = 20201457024000. Its totient is φ = 2223589294080.

The previous prime is 6880048011493. The next prime is 6880048011523. The reversal of 6880048011520 is 251108400886.

It is not an unprimeable number, because it can be changed into a prime (6880048011523) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 16821633076 + ... + 16821633484.

It is an arithmetic number, because the mean of its divisors is an integer number (17535987000).

Almost surely, 26880048011520 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 6880048011520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10100728512000).

6880048011520 is an abundant number, since it is smaller than the sum of its proper divisors (13321409012480).

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

6880048011520 is a wasteful number, since it uses less digits than its factorization.

6880048011520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 43.

The spelling of 6880048011520 in words is "six trillion, eight hundred eighty billion, forty-eight million, eleven thousand, five hundred twenty".