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20363163612 = 22311154266391
BaseRepresentation
bin10010111101101111…
…010011011111011100
31221120010212220001220
4102331233103133130
5313200432213422
613204341133340
71320422014641
oct227557233734
957503786056
1020363163612
1186aa525240
123b436ba250
131bc69bc64c
14db261bdc8
157e2aa4e5c
hex4bdbd37dc

20363163612 has 24 divisors (see below), whose sum is σ = 51833507712. Its totient is φ = 6170655600.

The previous prime is 20363163577. The next prime is 20363163637. The reversal of 20363163612 is 21636136302.

It is a super-3 number, since 3×203631636123 (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77133064 + ... + 77133327.

It is an arithmetic number, because the mean of its divisors is an integer number (2159729488).

Almost surely, 220363163612 is an apocalyptic number.

20363163612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20363163612 is an abundant number, since it is smaller than the sum of its proper divisors (31470344100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20363163612 is a wasteful number, since it uses less digits than its factorization.

20363163612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154266409 (or 154266407 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 33.

Adding to 20363163612 its reverse (21636136302), we get a palindrome (41999299914).

The spelling of 20363163612 in words is "twenty billion, three hundred sixty-three million, one hundred sixty-three thousand, six hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 154266391 308532782 462799173 617065564 925598346 1696930301 1851196692 3393860602 5090790903 6787721204 10181581806 20363163612