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7666382141 = 11696943831
BaseRepresentation
bin1110010001111001…
…11011010100111101
3201210021122120020022
413020330323110331
5111200043212031
63304421101525
7360660113225
oct71074732475
921707576208
107666382141
113284522410
12159b5578a5
139523a46c2
1452a263085
152ed09a97b
hex1c8f3b53d

7666382141 has 4 divisors (see below), whose sum is σ = 8363325984. Its totient is φ = 6969438300.

The previous prime is 7666382093. The next prime is 7666382147. The reversal of 7666382141 is 1412836667.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7666382141 - 26 = 7666382077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7666382092 and 7666382101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7666382147) 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, 348471905 + ... + 348471926.

It is an arithmetic number, because the mean of its divisors is an integer number (2090831496).

Almost surely, 27666382141 is an apocalyptic number.

It is an amenable number.

7666382141 is a deficient number, since it is larger than the sum of its proper divisors (696943843).

7666382141 is a wasteful number, since it uses less digits than its factorization.

7666382141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696943842.

The product of its digits is 290304, while the sum is 44.

The square root of 7666382141 is about 87557.8788059647. The cubic root of 7666382141 is about 1971.8028400858.

The spelling of 7666382141 in words is "seven billion, six hundred sixty-six million, three hundred eighty-two thousand, one hundred forty-one".

Divisors: 1 11 696943831 7666382141