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8180412089 = 47293172973
BaseRepresentation
bin1111001111001011…
…10010111010111001
3210010002212222202112
413213211302322321
5113223141141324
63431422342105
7406501232633
oct74745627271
923102788675
108180412089
1135186a1753
12170372a935
13a04a2c735
1457862ba53
1532d285c0e
hex1e7972eb9

8180412089 has 4 divisors (see below), whose sum is σ = 8180632356. Its totient is φ = 8180191824.

The previous prime is 8180412083. The next prime is 8180412109. The reversal of 8180412089 is 9802140818.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2036987689 + 6143424400 = 45133^2 + 78380^2 .

It is a cyclic number.

It is not a de Polignac number, because 8180412089 - 24 = 8180412073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8180412083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39194 + ... + 133779.

It is an arithmetic number, because the mean of its divisors is an integer number (2045158089).

Almost surely, 28180412089 is an apocalyptic number.

It is an amenable number.

8180412089 is a deficient number, since it is larger than the sum of its proper divisors (220267).

8180412089 is a wasteful number, since it uses less digits than its factorization.

8180412089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220266.

The product of its (nonzero) digits is 36864, while the sum is 41.

The square root of 8180412089 is about 90445.6305688672. The cubic root of 8180412089 is about 2014.9227200380.

The spelling of 8180412089 in words is "eight billion, one hundred eighty million, four hundred twelve thousand, eighty-nine".

Divisors: 1 47293 172973 8180412089