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20006220023 = 401241120693
BaseRepresentation
bin10010101000011101…
…101011000011110111
31220122021020021111222
4102220131223003313
5311433043020043
613105110420555
71305526031036
oct225035530367
956567207458
1020006220023
118536a98239
123a6406175b
131b6aa74b1a
14d7b06471d
157c1598d68
hex4a876b0f7

20006220023 has 8 divisors (see below), whose sum is σ = 20065399056. Its totient is φ = 19947088000.

The previous prime is 20006219983. The next prime is 20006220029. The reversal of 20006220023 is 32002260002.

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 20006220023 - 218 = 20005957879 is a prime.

It is a super-2 number, since 2×200062200232 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20006219983 and 20006220010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20006220029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956465 + ... + 977157.

It is an arithmetic number, because the mean of its divisors is an integer number (2508174882).

Almost surely, 220006220023 is an apocalyptic number.

20006220023 is a deficient number, since it is larger than the sum of its proper divisors (59179033).

20006220023 is a wasteful number, since it uses less digits than its factorization.

20006220023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23505.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20006220023 its reverse (32002260002), we get a palindrome (52008480025).

The spelling of 20006220023 in words is "twenty billion, six million, two hundred twenty thousand, twenty-three".

Divisors: 1 401 2411 20693 966811 8297893 49890823 20006220023