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20201203210223 = 72885886172889
BaseRepresentation
bin1001001011111011101011…
…00010101001011111101111
32122112012211120210121021202
410211331311202221133233
510121434031010211343
6110544145445120115
74153326435054260
oct445756542513757
978465746717252
1020201203210223
116489311627952
1223231660b903b
13b36c7197c609
144dba5a066967
1525072dc7bdb8
hex125f758a97ef

20201203210223 has 4 divisors (see below), whose sum is σ = 23087089383120. Its totient is φ = 17315317037328.

The previous prime is 20201203210211. The next prime is 20201203210241. The reversal of 20201203210223 is 32201230210202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20201203210223 - 212 = 20201203206127 is a prime.

It is a super-2 number, since 2×202012032102232 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20201203210195 and 20201203210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201203210423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1442943086438 + ... + 1442943086451.

It is an arithmetic number, because the mean of its divisors is an integer number (5771772345780).

Almost surely, 220201203210223 is an apocalyptic number.

20201203210223 is a deficient number, since it is larger than the sum of its proper divisors (2885886172897).

20201203210223 is an equidigital number, since it uses as much as digits as its factorization.

20201203210223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885886172896.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20201203210223 its reverse (32201230210202), we get a palindrome (52402433420425).

The spelling of 20201203210223 in words is "twenty trillion, two hundred one billion, two hundred three million, two hundred ten thousand, two hundred twenty-three".

Divisors: 1 7 2885886172889 20201203210223