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9686868113 = 13745143701
BaseRepresentation
bin10010000010110000…
…11110000010010001
3221000002112212221002
421001120132002101
5124314314234423
64241115111345
7462023006666
oct110130360221
927002485832
109686868113
114120a9142a
121a64142555
13bb4b72430
1467c731a6d
153ba658228
hex24161e091

9686868113 has 4 divisors (see below), whose sum is σ = 10432011828. Its totient is φ = 8941724400.

The previous prime is 9686868091. The next prime is 9686868151. The reversal of 9686868113 is 3118686869.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3118686869 = 6474820227.

It can be written as a sum of positive squares in 2 ways, for example, as 476243329 + 9210624784 = 21823^2 + 95972^2 .

It is a cyclic number.

It is not a de Polignac number, because 9686868113 - 26 = 9686868049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9686868193) 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, 372571838 + ... + 372571863.

It is an arithmetic number, because the mean of its divisors is an integer number (2608002957).

Almost surely, 29686868113 is an apocalyptic number.

It is an amenable number.

9686868113 is a deficient number, since it is larger than the sum of its proper divisors (745143715).

9686868113 is a wasteful number, since it uses less digits than its factorization.

9686868113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745143714.

The product of its digits is 2985984, while the sum is 56.

The square root of 9686868113 is about 98421.8883836314. Note that the first 3 decimals coincide. The cubic root of 9686868113 is about 2131.7083954583.

The spelling of 9686868113 in words is "nine billion, six hundred eighty-six million, eight hundred sixty-eight thousand, one hundred thirteen".

Divisors: 1 13 745143701 9686868113