Search a number
-
+
8195680900 = 22521128232
BaseRepresentation
bin1111010001000000…
…00010101010000100
3210011011121201122001
413220200002222010
5113241043242100
63433125515044
7410045065261
oct75040025204
923134551561
108195680900
113526280400
121708872a84
13a07c47534
1457a684268
1532e79ed6a
hex1e8802a84

8195680900 has 81 divisors (see below), whose sum is σ = 19572173733. Its totient is φ = 2976626400.

The previous prime is 8195680879. The next prime is 8195680921. The reversal of 8195680900 is 90865918.

The square root of 8195680900 is 90530.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (8195680879) and next prime (8195680921).

It can be written as a sum of positive squares in only one way, i.e., 2950445124 + 5245235776 = 54318^2 + 72424^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 9957889 + ... + 9958711.

Almost surely, 28195680900 is an apocalyptic number.

8195680900 is the 90530-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8195680900

8195680900 is an abundant number, since it is smaller than the sum of its proper divisors (11376492833).

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

8195680900 is a wasteful number, since it uses less digits than its factorization.

8195680900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 46.

The cubic root of 8195680900 is about 2016.1755645295.

The spelling of 8195680900 in words is "eight billion, one hundred ninety-five million, six hundred eighty thousand, nine hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 121 220 242 275 484 550 605 823 1100 1210 1646 2420 3025 3292 4115 6050 8230 9053 12100 16460 18106 20575 36212 41150 45265 82300 90530 99583 181060 199166 226325 398332 452650 497915 677329 905300 995830 1354658 1991660 2489575 2709316 3386645 4979150 6773290 7450619 9958300 13546580 14901238 16933225 29802476 33866450 37253095 67732900 74506190 81956809 149012380 163913618 186265475 327827236 372530950 409784045 745061900 819568090 1639136180 2048920225 4097840450 8195680900