Search a number
-
+
20000055005 = 575441105023
BaseRepresentation
bin10010101000000110…
…001001111011011101
31220121211122001200222
4102220012021323131
5311430003230010
613104330331125
71305422443160
oct225006117335
956554561628
1020000055005
118533567387
123a61b89aa5
131b696c6998
14d7a2dbad7
157c0c7c355
hex4a8189edd

20000055005 has 16 divisors (see below), whose sum is σ = 27433949184. Its totient is φ = 13711672320.

The previous prime is 20000054989. The next prime is 20000055017. The reversal of 20000055005 is 50055000002.

It is a happy number.

It is not a de Polignac number, because 20000055005 - 24 = 20000054989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 137924 + ... + 242946.

It is an arithmetic number, because the mean of its divisors is an integer number (1714621824).

Almost surely, 220000055005 is an apocalyptic number.

It is an amenable number.

20000055005 is a deficient number, since it is larger than the sum of its proper divisors (7433894179).

20000055005 is a wasteful number, since it uses less digits than its factorization.

20000055005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110476.

The product of its (nonzero) digits is 250, while the sum is 17.

Adding to 20000055005 its reverse (50055000002), we get a palindrome (70055055007).

The spelling of 20000055005 in words is "twenty billion, fifty-five thousand, five".

Divisors: 1 5 7 35 5441 27205 38087 105023 190435 525115 735161 3675805 571430143 2857150715 4000011001 20000055005