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1082146817 = 7389166561
BaseRepresentation
bin100000010000000…
…0100000000000001
32210102020202100202
41000200010000001
54204012144232
6255214054545
735550044663
oct10040040001
92712222322
101082146817
11505930a14
122624aa455
1314326c77b
14a3a12533
156500b162
hex40804001

1082146817 has 8 divisors (see below), whose sum is σ = 1109302920. Its totient is φ = 1055324160.

The previous prime is 1082146801. The next prime is 1082146823. The reversal of 1082146817 is 7186412801.

It is a happy number.

It is a Cunningham number, because it is equal to 328962+1.

It can be written as a sum of positive squares in 4 ways, for example, as 207821056 + 874325761 = 14416^2 + 29569^2 .

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 1082146817 - 24 = 1082146801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1082146517) 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, 76784 + ... + 89777.

It is an arithmetic number, because the mean of its divisors is an integer number (138662865).

Almost surely, 21082146817 is an apocalyptic number.

It is an amenable number.

1082146817 is a deficient number, since it is larger than the sum of its proper divisors (27156103).

1082146817 is an equidigital number, since it uses as much as digits as its factorization.

1082146817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166723.

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 1082146817 is about 32896.0000151994. Note that the first 4 decimals coincide. The cubic root of 1082146817 is about 1026.6649338790.

The spelling of 1082146817 in words is "one billion, eighty-two million, one hundred forty-six thousand, eight hundred seventeen".

Divisors: 1 73 89 6497 166561 12158953 14823929 1082146817