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8143480079 = 72910318257
BaseRepresentation
bin1111001010110001…
…11010010100001111
3210000112101122120022
413211120322110033
5113134212330304
63424023012355
7405542303300
oct74530722417
923015348508
108143480079
1134a9867129
1216b329a0bb
139ca19b487
145737767a7
15329ddcebe
hex1e563a50f

8143480079 has 12 divisors (see below), whose sum is σ = 9474587424. Its totient is φ = 6978976704.

The previous prime is 8143480049. The next prime is 8143480127. The reversal of 8143480079 is 9700843418.

8143480079 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-8143480079 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 (8143480049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 436919 + ... + 455175.

It is an arithmetic number, because the mean of its divisors is an integer number (789548952).

Almost surely, 28143480079 is an apocalyptic number.

8143480079 is a deficient number, since it is larger than the sum of its proper divisors (1331107345).

8143480079 is a wasteful number, since it uses less digits than its factorization.

8143480079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27374 (or 27367 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 8143480079 is about 90241.2326988057. The cubic root of 8143480079 is about 2011.8858960563.

The spelling of 8143480079 in words is "eight billion, one hundred forty-three million, four hundred eighty thousand, seventy-nine".

Divisors: 1 7 49 9103 18257 63721 127799 446047 894593 166193471 1163354297 8143480079