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8260424660 = 225413021233
BaseRepresentation
bin1111011000101110…
…00001001111010100
3210022200110001101002
413230113001033110
5113404132042120
63443401322432
7411462310505
oct75427011724
923280401332
108260424660
113559881344
121726496418
13a18495757
145850d8bac
153352dd375
hex1ec5c13d4

8260424660 has 12 divisors (see below), whose sum is σ = 17346891828. Its totient is φ = 3304169856.

The previous prime is 8260424659. The next prime is 8260424663. The reversal of 8260424660 is 664240628.

It can be written as a sum of positive squares in 2 ways, for example, as 3144742084 + 5115682576 = 56078^2 + 71524^2 .

It is a super-2 number, since 2×82604246602 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8260424663) 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, 206510597 + ... + 206510636.

It is an arithmetic number, because the mean of its divisors is an integer number (1445574319).

Almost surely, 28260424660 is an apocalyptic number.

It is an amenable number.

8260424660 is an abundant number, since it is smaller than the sum of its proper divisors (9086467168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8260424660 is a wasteful number, since it uses less digits than its factorization.

8260424660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413021242 (or 413021240 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The square root of 8260424660 is about 90886.8783708628. The cubic root of 8260424660 is about 2021.4707339709.

The spelling of 8260424660 in words is "eight billion, two hundred sixty million, four hundred twenty-four thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 413021233 826042466 1652084932 2065106165 4130212330 8260424660