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8163240071 = 71166177153
BaseRepresentation
bin1111001101001000…
…10010100010000111
3210001220120120011212
413212210102202013
5113204242140241
63430010322035
7406202252510
oct74644224207
923056516155
108163240071
113509a330a8
1216b9a2931b
13a012c958c
1457623ba07
1532b9e2beb
hex1e6912887

8163240071 has 4 divisors (see below), whose sum is σ = 9329417232. Its totient is φ = 6997062912.

The previous prime is 8163240061. The next prime is 8163240079. The reversal of 8163240071 is 1700423618.

8163240071 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8163240071 - 210 = 8163239047 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 (8163240079) 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, 583088570 + ... + 583088583.

It is an arithmetic number, because the mean of its divisors is an integer number (2332354308).

Almost surely, 28163240071 is an apocalyptic number.

8163240071 is a deficient number, since it is larger than the sum of its proper divisors (1166177161).

8163240071 is a wasteful number, since it uses less digits than its factorization.

8163240071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166177160.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 8163240071 is about 90350.6506396052. The cubic root of 8163240071 is about 2013.5118486514.

Adding to 8163240071 its reverse (1700423618), we get a palindrome (9863663689).

The spelling of 8163240071 in words is "eight billion, one hundred sixty-three million, two hundred forty thousand, seventy-one".

Divisors: 1 7 1166177153 8163240071