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20268083 = 112380111
BaseRepresentation
bin100110101010…
…0010000110011
31102010201120202
41031110100303
520142034313
62002225415
7334163423
oct115242063
942121522
1020268083
1110493790
12695526b
134278464
142998483
151ba5558
hex1354433

20268083 has 8 divisors (see below), whose sum is σ = 23072256. Its totient is φ = 17624200.

The previous prime is 20268077. The next prime is 20268089. The reversal of 20268083 is 38086202.

It is an interprime number because it is at equal distance from previous prime (20268077) and next prime (20268089).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20268083 - 224 = 3490867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20268089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39803 + ... + 40308.

It is an arithmetic number, because the mean of its divisors is an integer number (2884032).

Almost surely, 220268083 is an apocalyptic number.

20268083 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20268083 is a deficient number, since it is larger than the sum of its proper divisors (2804173).

20268083 is a wasteful number, since it uses less digits than its factorization.

20268083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80145.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 20268083 is about 4502.0087738697. The cubic root of 20268083 is about 272.6491980992.

The spelling of 20268083 in words is "twenty million, two hundred sixty-eight thousand, eighty-three".

Divisors: 1 11 23 253 80111 881221 1842553 20268083