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2188000842 = 231073739137
BaseRepresentation
bin1000001001101010…
…0011111001001010
312122111002221220020
42002122203321022
513440112011332
61001040241310
7105135462126
oct20232437112
95574087806
102188000842
11a23084465
12510910236
1328b3bcb71
1416a836586
15cc14b82c
hex826a3e4a

2188000842 has 32 divisors (see below), whose sum is σ = 4429225152. Its totient is φ = 720501504.

The previous prime is 2188000819. The next prime is 2188000847. The reversal of 2188000842 is 2480008812.

It is not an unprimeable number, because it can be changed into a prime (2188000847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234898 + ... + 244034.

It is an arithmetic number, because the mean of its divisors is an integer number (138413286).

Almost surely, 22188000842 is an apocalyptic number.

2188000842 is an abundant number, since it is smaller than the sum of its proper divisors (2241224310).

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

2188000842 is a wasteful number, since it uses less digits than its factorization.

2188000842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9622.

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 2188000842 is about 46776.0712544352. The cubic root of 2188000842 is about 1298.2225891077. Note that the first 3 decimals are identical.

The spelling of 2188000842 in words is "two billion, one hundred eighty-eight million, eight hundred forty-two", and thus it is an aban number.

Divisors: 1 2 3 6 107 214 321 373 642 746 1119 2238 9137 18274 27411 39911 54822 79822 119733 239466 977659 1955318 2932977 3408101 5865954 6816202 10224303 20448606 364666807 729333614 1094000421 2188000842