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8987660086 = 24493830043
BaseRepresentation
bin10000101111011010…
…01100111100110110
3212012100212102211111
420113231030330312
5121401320110321
64043500425234
7435502564426
oct102755147466
925170772744
108987660086
1138a2333059
1218a9b4821a
13b0304c682
14613922486
153790905e1
hex217b4cf36

8987660086 has 4 divisors (see below), whose sum is σ = 13481490132. Its totient is φ = 4493830042.

The previous prime is 8987660083. The next prime is 8987660107. The reversal of 8987660086 is 6800667898.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6800667898 = 23400333949.

It is a self number, because there is not a number n which added to its sum of digits gives 8987660086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8987660081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2246915020 + ... + 2246915023.

It is an arithmetic number, because the mean of its divisors is an integer number (3370372533).

Almost surely, 28987660086 is an apocalyptic number.

8987660086 is a deficient number, since it is larger than the sum of its proper divisors (4493830046).

8987660086 is a wasteful number, since it uses less digits than its factorization.

8987660086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4493830045.

The product of its (nonzero) digits is 6967296, while the sum is 58.

The square root of 8987660086 is about 94803.2704393683. The cubic root of 8987660086 is about 2079.1327195110.

The spelling of 8987660086 in words is "eight billion, nine hundred eighty-seven million, six hundred sixty thousand, eighty-six".

Divisors: 1 2 4493830043 8987660086