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9920001361 = 23538137819
BaseRepresentation
bin10010011110100011…
…10011010101010001
3221121100020021121211
421033101303111101
5130304010020421
64320204020121
7500553422524
oct111721632521
927540207554
109920001361
114230644936
121b0a231641
13c2125a8ba
146a169abbb
153d0d599e1
hex24f473551

9920001361 has 8 divisors (see below), whose sum is σ = 10546614720. Its totient is φ = 9309663792.

The previous prime is 9920001349. The next prime is 9920001367. The reversal of 9920001361 is 1631000299.

9920001361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9920001361 - 221 = 9917904209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9920001367) 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 7 ways as a sum of consecutive naturals, for example, 4067691 + ... + 4070128.

It is an arithmetic number, because the mean of its divisors is an integer number (1318326840).

Almost surely, 29920001361 is an apocalyptic number.

It is an amenable number.

9920001361 is a deficient number, since it is larger than the sum of its proper divisors (626613359).

9920001361 is a wasteful number, since it uses less digits than its factorization.

9920001361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8137895.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 9920001361 is about 99599.2036162940. The cubic root of 9920001361 is about 2148.6742402422.

The spelling of 9920001361 in words is "nine billion, nine hundred twenty million, one thousand, three hundred sixty-one".

Divisors: 1 23 53 1219 8137819 187169837 431304407 9920001361