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8081947206 = 23516629521
BaseRepresentation
bin1111000011011100…
…01011101001000110
3202212020121110100000
413201232023221012
5113022434302311
63413544102130
7404164263204
oct74156135106
922766543300
108081947206
113478059613
121696764946
139ba5058a8
1456951a074
153247d6056
hex1e1b8ba46

8081947206 has 24 divisors (see below), whose sum is σ = 18159438024. Its totient is φ = 2693982240.

The previous prime is 8081947201. The next prime is 8081947267. The reversal of 8081947206 is 6027491808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081947201) 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 11 ways as a sum of consecutive naturals, for example, 8314275 + ... + 8315246.

It is an arithmetic number, because the mean of its divisors is an integer number (756643251).

Almost surely, 28081947206 is an apocalyptic number.

8081947206 is an abundant number, since it is smaller than the sum of its proper divisors (10077490818).

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

8081947206 is a wasteful number, since it uses less digits than its factorization.

8081947206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16629538 (or 16629526 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 8081947206 is about 89899.6507557176. The cubic root of 8081947206 is about 2006.8057484581.

The spelling of 8081947206 in words is "eight billion, eighty-one million, nine hundred forty-seven thousand, two hundred six".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 16629521 33259042 49888563 99777126 149665689 299331378 448997067 897994134 1346991201 2693982402 4040973603 8081947206