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76608841 = 193396937
BaseRepresentation
bin1001001000011…
…11010101001001
312100011010120111
410210033111021
5124102440331
611333554321
71620110251
oct444172511
9170133514
1076608841
113a2753a1
12217a59a1
1312b4399a
14a262961
156ad3db1
hex490f549

76608841 has 4 divisors (see below), whose sum is σ = 77005972. Its totient is φ = 76211712.

The previous prime is 76608827. The next prime is 76608853. The reversal of 76608841 is 14880667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14880667 = 19783193.

It can be written as a sum of positive squares in 2 ways, for example, as 53231616 + 23377225 = 7296^2 + 4835^2 .

It is a cyclic number.

It is not a de Polignac number, because 76608841 - 223 = 68220233 is a prime.

It is a house number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76608794 and 76608803.

It is not an unprimeable number, because it can be changed into a prime (76608871) 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, 198276 + ... + 198661.

It is an arithmetic number, because the mean of its divisors is an integer number (19251493).

Almost surely, 276608841 is an apocalyptic number.

It is an amenable number.

76608841 is a deficient number, since it is larger than the sum of its proper divisors (397131).

76608841 is a wasteful number, since it uses less digits than its factorization.

76608841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397130.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 76608841 is about 8752.6476565666. The cubic root of 76608841 is about 424.7104666973.

The spelling of 76608841 in words is "seventy-six million, six hundred eight thousand, eight hundred forty-one".

Divisors: 1 193 396937 76608841