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8711405681 = 111934103347
BaseRepresentation
bin10000001110011110…
…11000000001110001
3211111010001021000212
420013033120001301
5120320104440211
64000231353505
7425606504126
oct100717300161
924433037025
108711405681
1137703a8030
121831522895
13a8aa46b24
145c8d7074d
1535ebc238b
hex2073d8071

8711405681 has 8 divisors (see below), whose sum is σ = 9552594144. Its totient is φ = 7878424320.

The previous prime is 8711405663. The next prime is 8711405683. The reversal of 8711405681 is 1865041178.

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 8711405681 - 218 = 8711143537 is a prime.

It is a super-2 number, since 2×87114056812 (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 (8711405683) 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, 2049551 + ... + 2053796.

It is an arithmetic number, because the mean of its divisors is an integer number (1194074268).

Almost surely, 28711405681 is an apocalyptic number.

It is an amenable number.

8711405681 is a deficient number, since it is larger than the sum of its proper divisors (841188463).

8711405681 is a wasteful number, since it uses less digits than its factorization.

8711405681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103551.

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

The square root of 8711405681 is about 93334.9113729691. The cubic root of 8711405681 is about 2057.6085045488.

The spelling of 8711405681 in words is "eight billion, seven hundred eleven million, four hundred five thousand, six hundred eighty-one".

Divisors: 1 11 193 2123 4103347 45136817 791945971 8711405681