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2199008860 = 225109950443
BaseRepresentation
bin1000001100010010…
…0011011001011100
312200020211020001121
42003010203121130
514000421240420
61002112220324
7105331160356
oct20304433134
95606736047
102199008860
11a293129a4
1251453a6a4
13290775499
1416c0a00d6
15cd0c32aa
hex8312365c

2199008860 has 12 divisors (see below), whose sum is σ = 4617918648. Its totient is φ = 879603536.

The previous prime is 2199008807. The next prime is 2199008869. The reversal of 2199008860 is 688009912.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199008869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54975202 + ... + 54975241.

It is an arithmetic number, because the mean of its divisors is an integer number (384826554).

Almost surely, 22199008860 is an apocalyptic number.

2199008860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2199008860 is an abundant number, since it is smaller than the sum of its proper divisors (2418909788).

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

2199008860 is a wasteful number, since it uses less digits than its factorization.

2199008860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109950452 (or 109950450 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 2199008860 is about 46893.5908200684. The cubic root of 2199008860 is about 1300.3961041487.

The spelling of 2199008860 in words is "two billion, one hundred ninety-nine million, eight thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 109950443 219900886 439801772 549752215 1099504430 2199008860