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8660990668 = 2211593336283
BaseRepresentation
bin10000001000011110…
…00011101011001100
3211100121011220122011
420010033003223030
5120214203200133
63551231031004
7424425130441
oct100417035314
924317156564
108660990668
1137449a3530
12181866b464
13a80474865
145c23a99c8
1535a5646cd
hex2043c3acc

8660990668 has 24 divisors (see below), whose sum is σ = 16814871360. Its totient is φ = 3870087120.

The previous prime is 8660990651. The next prime is 8660990669.

8660990668 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×86609906683 (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (8660990669) 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, 1665546 + ... + 1670737.

It is an arithmetic number, because the mean of its divisors is an integer number (700619640).

Almost surely, 28660990668 is an apocalyptic number.

It is an amenable number.

8660990668 is a deficient number, since it is larger than the sum of its proper divisors (8153880692).

8660990668 is a wasteful number, since it uses less digits than its factorization.

8660990668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336357 (or 3336355 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 58.

The square root of 8660990668 is about 93064.4436291326. The cubic root of 8660990668 is about 2053.6315299502.

The spelling of 8660990668 in words is "eight billion, six hundred sixty million, nine hundred ninety thousand, six hundred sixty-eight".

Divisors: 1 2 4 11 22 44 59 118 236 649 1298 2596 3336283 6672566 13345132 36699113 73398226 146796452 196840697 393681394 787362788 2165247667 4330495334 8660990668