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20220131023 = 971971058147
BaseRepresentation
bin10010110101001101…
…101011011011001111
31221012011202002020121
4102311031223123033
5312402323143043
613142231325411
71314034164211
oct226515533317
957164662217
1020220131023
118636811794
123b03820867
131ba318cb91
14d9b6285b1
157d524eded
hex4b536b6cf

20220131023 has 8 divisors (see below), whose sum is σ = 20532303792. Its totient is φ = 19910075136.

The previous prime is 20220130993. The next prime is 20220131027. The reversal of 20220131023 is 32013102202.

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 20220131023 - 213 = 20220122831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20220130988 and 20220131006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220131027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509965 + ... + 548182.

It is an arithmetic number, because the mean of its divisors is an integer number (2566537974).

Almost surely, 220220131023 is an apocalyptic number.

20220131023 is a deficient number, since it is larger than the sum of its proper divisors (312172769).

20220131023 is a wasteful number, since it uses less digits than its factorization.

20220131023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058441.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20220131023 its reverse (32013102202), we get a palindrome (52233233225).

The spelling of 20220131023 in words is "twenty billion, two hundred twenty million, one hundred thirty-one thousand, twenty-three".

Divisors: 1 97 197 19109 1058147 102640259 208454959 20220131023