Search a number
-
+
8660550668 = 2272114199587
BaseRepresentation
bin10000001000011010…
…11000010000001100
3211100120100120001212
420010031120100030
5120214100110133
63551213353552
7424421315600
oct100415302014
924316316055
108660550668
1137447229a0
1218184988b8
13a8034c4c3
145c22d3500
1535a4c9148
hex20435840c

8660550668 has 72 divisors (see below), whose sum is σ = 19281084480. Its totient is φ = 3365836320.

The previous prime is 8660550667. The next prime is 8660550697.

8660550668 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (8660550667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 898571 + ... + 908157.

It is an arithmetic number, because the mean of its divisors is an integer number (267792840).

Almost surely, 28660550668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8660550668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9640542240).

8660550668 is an abundant number, since it is smaller than the sum of its proper divisors (10620533812).

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

8660550668 is a wasteful number, since it uses less digits than its factorization.

8660550668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10035 (or 10026 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 50.

The square root of 8660550668 is about 93062.0796457934. The cubic root of 8660550668 is about 2053.5967528210.

The spelling of 8660550668 in words is "eight billion, six hundred sixty million, five hundred fifty thousand, six hundred sixty-eight".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 419 539 838 1078 1676 2156 2933 4609 5866 9218 9587 11732 18436 19174 20531 32263 38348 41062 64526 67109 82124 105457 129052 134218 210914 225841 268436 421828 451682 469763 738199 903364 939526 1476398 1879052 2952796 4016953 5167393 8033906 10334786 16067812 20669572 28118671 44186483 56237342 88372966 112474684 176745932 196830697 309305381 393661394 618610762 787322788 1237221524 2165137667 4330275334 8660550668