Search a number
-
+
76920585280 = 26571122313999
BaseRepresentation
bin100011110100011010…
…0101111110001000000
321100112201122121010221
41013220310233301000
52230013132212110
655200431032424
75362110121060
oct1075064576100
9240481577127
1076920585280
112a692735240
1212aa866b714
13733b166726
143a19bbd3a0
152002e8e7da
hex11e8d2fc40

76920585280 has 224 divisors, whose sum is σ = 229404672000. Its totient is φ = 23866030080.

The previous prime is 76920585277. The next prime is 76920585281. The reversal of 76920585280 is 8258502967.

It is a tau number, because it is divible by the number of its divisors (224).

It is not an unprimeable number, because it can be changed into a prime (76920585281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5487721 + ... + 5501719.

It is an arithmetic number, because the mean of its divisors is an integer number (1024128000).

Almost surely, 276920585280 is an apocalyptic number.

76920585280 is a gapful number since it is divisible by the number (70) 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 76920585280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114702336000).

76920585280 is an abundant number, since it is smaller than the sum of its proper divisors (152484086720).

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

76920585280 is a wasteful number, since it uses less digits than its factorization.

76920585280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14257 (or 14247 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 76920585280 in words is "seventy-six billion, nine hundred twenty million, five hundred eighty-five thousand, two hundred eighty".