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9680881 = 72197569
BaseRepresentation
bin100100111011…
…011111110001
3200012211200011
4210323133301
54434242011
6543254521
7145200100
oct44733761
920184604
109680881
115512431
1232aa441
13200c542
141400037
15cb3621
hex93b7f1

9680881 has 6 divisors (see below), whose sum is σ = 11261490. Its totient is φ = 8297856.

The previous prime is 9680843. The next prime is 9680893. The reversal of 9680881 is 1880869.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9486400 + 194481 = 3080^2 + 441^2 .

It is not a de Polignac number, because 9680881 - 29 = 9680369 is a prime.

It is a super-2 number, since 2×96808812 = 187438913872322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9683881) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98736 + ... + 98833.

It is an arithmetic number, because the mean of its divisors is an integer number (1876915).

Almost surely, 29680881 is an apocalyptic number.

It is an amenable number.

9680881 is a deficient number, since it is larger than the sum of its proper divisors (1580609).

9680881 is a wasteful number, since it uses less digits than its factorization.

9680881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197583 (or 197576 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 9680881 is about 3111.4114160618. The cubic root of 9680881 is about 213.1269126914.

The spelling of 9680881 in words is "nine million, six hundred eighty thousand, eight hundred eighty-one".

Divisors: 1 7 49 197569 1382983 9680881