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7082563681 = 17537860781
BaseRepresentation
bin1101001100010011…
…10101100001100001
3200021121002111212101
412212021311201201
5104001114014211
63130443530401
7340340540464
oct64611654141
920247074771
107082563681
113004a16a16
121457b29a01
1388b4531ab
144b28cd2db
152b6bc75c1
hex1a6275861

7082563681 has 8 divisors (see below), whose sum is σ = 7640680104. Its totient is φ = 6540168960.

The previous prime is 7082563651. The next prime is 7082563699. The reversal of 7082563681 is 1863652807.

It can be written as a sum of positive squares in 4 ways, for example, as 647957025 + 6434606656 = 25455^2 + 80216^2 .

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 7082563681 - 213 = 7082555489 is a prime.

It is a super-2 number, since 2×70825636812 (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 (7082563651) 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, 3929490 + ... + 3931291.

It is an arithmetic number, because the mean of its divisors is an integer number (955085013).

Almost surely, 27082563681 is an apocalyptic number.

It is an amenable number.

7082563681 is a deficient number, since it is larger than the sum of its proper divisors (558116423).

7082563681 is a wasteful number, since it uses less digits than its factorization.

7082563681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7860851.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 7082563681 is about 84157.9686126038. The cubic root of 7082563681 is about 1920.4226934847.

The spelling of 7082563681 in words is "seven billion, eighty-two million, five hundred sixty-three thousand, six hundred eighty-one".

Divisors: 1 17 53 901 7860781 133633277 416621393 7082563681