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9920682151 = 59031680617
BaseRepresentation
bin10010011110101000…
…11001100010100111
3221121101111212111021
421033110121202213
5130304143312101
64320230352011
7500562256402
oct111724314247
927541455437
109920682151
114230a6a376
121b0a4bb607
13c21438733
146a17d6d39
153d0e415a1
hex24f5198a7

9920682151 has 4 divisors (see below), whose sum is σ = 9922368672. Its totient is φ = 9918995632.

The previous prime is 9920682143. The next prime is 9920682157. The reversal of 9920682151 is 1512860299.

9920682151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1512860299 = 4732188517.

It is a cyclic number.

It is not a de Polignac number, because 9920682151 - 23 = 9920682143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9920682098 and 9920682107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9920682157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834406 + ... + 846211.

It is an arithmetic number, because the mean of its divisors is an integer number (2480592168).

Almost surely, 29920682151 is an apocalyptic number.

9920682151 is a deficient number, since it is larger than the sum of its proper divisors (1686521).

9920682151 is a wasteful number, since it uses less digits than its factorization.

9920682151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686520.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 9920682151 is about 99602.6212054683. The cubic root of 9920682151 is about 2148.7233922003.

The spelling of 9920682151 in words is "nine billion, nine hundred twenty million, six hundred eighty-two thousand, one hundred fifty-one".

Divisors: 1 5903 1680617 9920682151