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20813092201 = 113183735367
BaseRepresentation
bin10011011000100011…
…101001010101101001
31222201111111122001201
4103120203221111221
5320111122422301
613321132444201
71334524236046
oct233043512551
958644448051
1020813092201
1189104a2250
12404a319661
131c68c92995
14101629c1cd
1581c32c201
hex4d88e9569

20813092201 has 16 divisors (see below), whose sum is σ = 23720030208. Its totient is φ = 18090003600.

The previous prime is 20813092199. The next prime is 20813092207. The reversal of 20813092201 is 10229031802.

It is a cyclic number.

It is not a de Polignac number, because 20813092201 - 21 = 20813092199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20813092201.

It is not an unprimeable number, because it can be changed into a prime (20813092207) 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 15 ways as a sum of consecutive naturals, for example, 339381 + ... + 395986.

It is an arithmetic number, because the mean of its divisors is an integer number (1482501888).

Almost surely, 220813092201 is an apocalyptic number.

It is an amenable number.

20813092201 is a deficient number, since it is larger than the sum of its proper divisors (2906938007).

20813092201 is a wasteful number, since it uses less digits than its factorization.

20813092201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735492.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 20813092201 in words is "twenty billion, eight hundred thirteen million, ninety-two thousand, two hundred one".

Divisors: 1 11 31 83 341 913 2573 28303 735367 8089037 22796377 61035461 250760147 671390071 1892099291 20813092201