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8180141197 = 10185394949
BaseRepresentation
bin1111001111001001…
…10000110010001101
3210010002101020011111
413213210300302031
5113223104004242
63431412452021
7406466024104
oct74744606215
923102336144
108180141197
113518527178
12170361a011
13a04966347
1457859b03b
1532d230817
hex1e7930c8d

8180141197 has 8 divisors (see below), whose sum is σ = 8270904600. Its totient is φ = 8089569600.

The previous prime is 8180141159. The next prime is 8180141237. The reversal of 8180141197 is 7911410818.

It can be written as a sum of positive squares in 4 ways, for example, as 398960676 + 7781180521 = 19974^2 + 88211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8180141197 - 27 = 8180141069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8180141597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38679 + ... + 133627.

It is an arithmetic number, because the mean of its divisors is an integer number (1033863075).

Almost surely, 28180141197 is an apocalyptic number.

It is an amenable number.

8180141197 is a deficient number, since it is larger than the sum of its proper divisors (90763403).

8180141197 is a wasteful number, since it uses less digits than its factorization.

8180141197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95903.

The product of its (nonzero) digits is 16128, while the sum is 40.

The square root of 8180141197 is about 90444.1330159121. The cubic root of 8180141197 is about 2014.9004785965.

The spelling of 8180141197 in words is "eight billion, one hundred eighty million, one hundred forty-one thousand, one hundred ninety-seven".

Divisors: 1 101 853 86153 94949 9589849 80991497 8180141197