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20282923 = 149197691
BaseRepresentation
bin100110101011…
…1111000101011
31102011110221101
41031113320223
520143023143
62002422231
7334254613
oct115277053
942143841
1020282923
11104a3951
126961977
13428213b
14299da43
151ba9b4d
hex1357e2b

20282923 has 8 divisors (see below), whose sum is σ = 20552400. Its totient is φ = 20015520.

The previous prime is 20282917. The next prime is 20282929. The reversal of 20282923 is 32928202.

It is an interprime number because it is at equal distance from previous prime (20282917) and next prime (20282929).

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 20282923 - 221 = 18185771 is a prime.

It is a super-2 number, since 2×202829232 = 822793930847858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20282891 and 20282900.

It is not an unprimeable number, because it can be changed into a prime (20282929) 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, 29008 + ... + 29698.

It is an arithmetic number, because the mean of its divisors is an integer number (2569050).

Almost surely, 220282923 is an apocalyptic number.

20282923 is a deficient number, since it is larger than the sum of its proper divisors (269477).

20282923 is a wasteful number, since it uses less digits than its factorization.

20282923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 20282923 is about 4503.6566254545. The cubic root of 20282923 is about 272.7157251441.

The spelling of 20282923 in words is "twenty million, two hundred eighty-two thousand, nine hundred twenty-three".

Divisors: 1 149 197 691 29353 102959 136127 20282923