Search a number
-
+
102881686 = 2891673461
BaseRepresentation
bin1100010000111…
…01100110010110
321011120221010211
412020131212112
5202314203221
614113040034
72356323415
oct610354626
9234527124
10102881686
115308a596
122a55601a
131841234b
14d94147c
1590736e1
hex621d996

102881686 has 16 divisors (see below), whose sum is σ = 157036320. Its totient is φ = 50543680.

The previous prime is 102881651. The next prime is 102881693. The reversal of 102881686 is 686188201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27996 + ... + 31456.

It is an arithmetic number, because the mean of its divisors is an integer number (9814770).

Almost surely, 2102881686 is an apocalyptic number.

102881686 is a deficient number, since it is larger than the sum of its proper divisors (54154634).

102881686 is a wasteful number, since it uses less digits than its factorization.

102881686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719.

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 102881686 is about 10143.0609778311. The cubic root of 102881686 is about 468.5752629658.

The spelling of 102881686 in words is "one hundred two million, eight hundred eighty-one thousand, six hundred eighty-six".

Divisors: 1 2 89 167 178 334 3461 6922 14863 29726 308029 577987 616058 1155974 51440843 102881686