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2113231104 = 283217163331
BaseRepresentation
bin111110111110101…
…0101100100000000
312110021102021002200
41331331111210000
513311441343404
6545405513200
7103240111425
oct17575254400
95407367080
102113231104
11994955896
124ab872800
13278a7130a
14160931d4c
15c57cc839
hex7df55900

2113231104 has 216 divisors, whose sum is σ = 6510565152. Its totient is φ = 656916480.

The previous prime is 2113231097. The next prime is 2113231139. The reversal of 2113231104 is 4011323112.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6384219 + ... + 6384549.

Almost surely, 22113231104 is an apocalyptic number.

2113231104 is a gapful number since it is divisible by the number (24) 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 2113231104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3255282576).

2113231104 is an abundant number, since it is smaller than the sum of its proper divisors (4397334048).

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

2113231104 is a wasteful number, since it uses less digits than its factorization.

2113231104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2113231104 is about 45969.8934521280. The cubic root of 2113231104 is about 1283.2629770316.

Adding to 2113231104 its reverse (4011323112), we get a palindrome (6124554216).

The spelling of 2113231104 in words is "two billion, one hundred thirteen million, two hundred thirty-one thousand, one hundred four".