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8023060681 = 11371000537
BaseRepresentation
bin1110111100011011…
…00011000011001001
3202201010210201012121
413132031203003021
5112412400420211
63404042011241
7402550614316
oct73615430311
922633721177
108023060681
113447899269
12167aaa6b21
139ab2586ac
1456178bd0d
1531e553271
hex1de3630c9

8023060681 has 4 divisors (see below), whose sum is σ = 8094061332. Its totient is φ = 7952060032.

The previous prime is 8023060667. The next prime is 8023060691. The reversal of 8023060681 is 1860603208.

8023060681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3963332025 + 4059728656 = 62955^2 + 63716^2 .

It is a cyclic number.

It is not a de Polignac number, because 8023060681 - 225 = 7989506249 is a prime.

It is a super-2 number, since 2×80230606812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8023060621) 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 3 ways as a sum of consecutive naturals, for example, 35500156 + ... + 35500381.

It is an arithmetic number, because the mean of its divisors is an integer number (2023515333).

Almost surely, 28023060681 is an apocalyptic number.

It is an amenable number.

8023060681 is a deficient number, since it is larger than the sum of its proper divisors (71000651).

8023060681 is a wasteful number, since it uses less digits than its factorization.

8023060681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71000650.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 8023060681 is about 89571.5394586919. The cubic root of 8023060681 is about 2001.9198798576.

Adding to 8023060681 its reverse (1860603208), we get a palindrome (9883663889).

The spelling of 8023060681 in words is "eight billion, twenty-three million, sixty thousand, six hundred eighty-one".

Divisors: 1 113 71000537 8023060681