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2111316480 = 293257131953
BaseRepresentation
bin111110111011000…
…0010001000000000
312110010210222201200
41331312002020000
513310444111410
6545300501200
7103214615430
oct17566021000
95403728650
102111316480
11993868359
124ab0aa800
132785509c0
141605942c0
15c55503c0
hex7dd82200

2111316480 has 960 divisors, whose sum is σ = 9651882240. Its totient is φ = 414056448.

The previous prime is 2111316451. The next prime is 2111316481. The reversal of 2111316480 is 846131112.

It is a happy number.

2111316480 is a `hidden beast` number, since 2 + 1 + 1 + 13 + 1 + 648 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is not an unprimeable number, because it can be changed into a prime (2111316481) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 39836134 + ... + 39836186.

It is an arithmetic number, because the mean of its divisors is an integer number (10054044).

Almost surely, 22111316480 is an apocalyptic number.

2111316480 is a gapful number since it is divisible by the number (20) 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 2111316480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4825941120).

2111316480 is an abundant number, since it is smaller than the sum of its proper divisors (7540565760).

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

2111316480 is a wasteful number, since it uses less digits than its factorization.

2111316480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 2111316480 is about 45949.0639730561. The cubic root of 2111316480 is about 1282.8753070979.

Adding to 2111316480 its reverse (846131112), we get a palindrome (2957447592).

The spelling of 2111316480 in words is "two billion, one hundred eleven million, three hundred sixteen thousand, four hundred eighty".