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9688762868 = 225557435881
BaseRepresentation
bin10010000010111111…
…01100100111110100
3221000020010011001012
421001133230213310
5124320310402433
64241223451352
7462045061031
oct110137544764
927006104035
109688762868
114122065a44
121a648b6b58
13bb53869a5
1467caa6388
153ba8ce848
hex2417ec9f4

9688762868 has 12 divisors (see below), whose sum is σ = 16958425092. Its totient is φ = 4843498560.

The previous prime is 9688762861. The next prime is 9688762883. The reversal of 9688762868 is 8682678869.

It can be written as a sum of positive squares in 2 ways, for example, as 9372563344 + 316199524 = 96812^2 + 17782^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9688762798 and 9688762807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9688762861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195713 + ... + 240168.

It is an arithmetic number, because the mean of its divisors is an integer number (1413202091).

Almost surely, 29688762868 is an apocalyptic number.

It is an amenable number.

9688762868 is a deficient number, since it is larger than the sum of its proper divisors (7269662224).

9688762868 is a wasteful number, since it uses less digits than its factorization.

9688762868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441442 (or 441440 counting only the distinct ones).

The product of its digits is 111476736, while the sum is 68.

The square root of 9688762868 is about 98431.5135919386. The cubic root of 9688762868 is about 2131.8473740485.

The spelling of 9688762868 in words is "nine billion, six hundred eighty-eight million, seven hundred sixty-two thousand, eight hundred sixty-eight".

Divisors: 1 2 4 5557 11114 22228 435881 871762 1743524 2422190717 4844381434 9688762868