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8250472660 = 225894635097
BaseRepresentation
bin1111010111100010…
…00011100011010100
3210021222201102210111
413223301003203110
5113344110111120
63442404132404
7411311601103
oct75361034324
923258642714
108250472660
1135541a4251
121723097104
13a163bc9b1
14583a6803a
153344c475a
hex1ebc438d4

8250472660 has 24 divisors (see below), whose sum is σ = 17520670440. Its totient is φ = 3263107584.

The previous prime is 8250472627. The next prime is 8250472663. The reversal of 8250472660 is 662740528.

It can be written as a sum of positive squares in 4 ways, for example, as 198640836 + 8051831824 = 14094^2 + 89732^2 .

It is a super-2 number, since 2×82504726602 (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 (8250472663) 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 7 ways as a sum of consecutive naturals, for example, 2315769 + ... + 2319328.

It is an arithmetic number, because the mean of its divisors is an integer number (730027935).

Almost surely, 28250472660 is an apocalyptic number.

It is an amenable number.

8250472660 is an abundant number, since it is smaller than the sum of its proper divisors (9270197780).

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

8250472660 is a wasteful number, since it uses less digits than its factorization.

8250472660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4635195 (or 4635193 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 8250472660 is about 90832.1124933247. The cubic root of 8250472660 is about 2020.6585981097.

The spelling of 8250472660 in words is "eight billion, two hundred fifty million, four hundred seventy-two thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 89 178 356 445 890 1780 4635097 9270194 18540388 23175485 46350970 92701940 412523633 825047266 1650094532 2062618165 4125236330 8250472660