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8076115481 = 72677430979
BaseRepresentation
bin1111000010101111…
…11011111000011001
3202211211122011201012
413201113323320121
5113014441143411
63413215103305
7404063564120
oct74127737031
922754564635
108076115481
113474836105
121694811b35
139b9243375
1456883cab7
1532403318b
hex1e15fbe19

8076115481 has 8 divisors (see below), whose sum is σ = 9233315520. Its totient is φ = 6919782768.

The previous prime is 8076115459. The next prime is 8076115493. The reversal of 8076115481 is 1845116708.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8076115481 - 26 = 8076115417 is a prime.

It is a super-2 number, since 2×80761154812 (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 (8076115181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196751 + ... + 234228.

It is an arithmetic number, because the mean of its divisors is an integer number (1154164440).

Almost surely, 28076115481 is an apocalyptic number.

It is an amenable number.

8076115481 is a deficient number, since it is larger than the sum of its proper divisors (1157200039).

8076115481 is a wasteful number, since it uses less digits than its factorization.

8076115481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433663.

The product of its (nonzero) digits is 53760, while the sum is 41.

The square root of 8076115481 is about 89867.2102660364. The cubic root of 8076115481 is about 2006.3229458621.

The spelling of 8076115481 in words is "eight billion, seventy-six million, one hundred fifteen thousand, four hundred eighty-one".

Divisors: 1 7 2677 18739 430979 3016853 1153730783 8076115481