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20554673241 = 3433108714557
BaseRepresentation
bin10011001001001001…
…110110110001011001
31222001111020120220010
4103021021312301121
5314043444020431
613235341552133
71325235561024
oct231111666131
958044216803
1020554673241
118798639263
123b97875649
131c2759325b
14dcdc301bb
158047d3846
hex4c9276c59

20554673241 has 16 divisors (see below), whose sum is σ = 27496684544. Its totient is φ = 13657953024.

The previous prime is 20554673221. The next prime is 20554673257. The reversal of 20554673241 is 14237645502.

It is not a de Polignac number, because 20554673241 - 26 = 20554673177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20554673241.

It is not an unprimeable number, because it can be changed into a prime (20554673221) 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, 1404735 + ... + 1419291.

It is an arithmetic number, because the mean of its divisors is an integer number (1718542784).

Almost surely, 220554673241 is an apocalyptic number.

It is an amenable number.

20554673241 is a deficient number, since it is larger than the sum of its proper divisors (6942011303).

20554673241 is a wasteful number, since it uses less digits than its factorization.

20554673241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16080.

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 20554673241 in words is "twenty billion, five hundred fifty-four million, six hundred seventy-three thousand, two hundred forty-one".

Divisors: 1 3 433 1087 1299 3261 14557 43671 470671 1412013 6303181 15823459 18909543 47470377 6851557747 20554673241