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20302333023 = 372731891933
BaseRepresentation
bin10010111010000111…
…010000010001011111
31221101220102101012010
4102322013100101133
5313034344124043
613154325242303
71316052661200
oct227207202137
957356371163
1020302333023
118679157325
123b27263393
131bb721160b
14da85055a7
157dc58b133
hex4ba1d045f

20302333023 has 24 divisors (see below), whose sum is σ = 31920710448. Its totient is φ = 11442404736.

The previous prime is 20302332983. The next prime is 20302333031. The reversal of 20302333023 is 32033320302.

It is not a de Polignac number, because 20302333023 - 210 = 20302331999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302333043) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 935236 + ... + 956697.

It is an arithmetic number, because the mean of its divisors is an integer number (1330029602).

Almost surely, 220302333023 is an apocalyptic number.

20302333023 is a deficient number, since it is larger than the sum of its proper divisors (11618377425).

20302333023 is a wasteful number, since it uses less digits than its factorization.

20302333023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892023 (or 1892016 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 21.

Adding to 20302333023 its reverse (32033320302), we get a palindrome (52335653325).

The spelling of 20302333023 in words is "twenty billion, three hundred two million, three hundred thirty-three thousand, twenty-three".

Divisors: 1 3 7 21 49 73 147 219 511 1533 3577 10731 1891933 5675799 13243531 39730593 92704717 138111109 278114151 414333327 966777763 2900333289 6767444341 20302333023