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20060393 = 236831277
BaseRepresentation
bin100110010000…
…1100011101001
31101202011200112
41030201203221
520113413033
61553544105
7332340053
oct114414351
941664615
1020060393
1110361741
126875035
134204a72
1429428d3
151b63c48
hex13218e9

20060393 has 8 divisors (see below), whose sum is σ = 20979648. Its totient is φ = 19145104.

The previous prime is 20060387. The next prime is 20060407. The reversal of 20060393 is 39306002.

It is a happy number.

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 20060393 - 24 = 20060377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20060363) 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, 15071 + ... + 16347.

It is an arithmetic number, because the mean of its divisors is an integer number (2622456).

Almost surely, 220060393 is an apocalyptic number.

20060393 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20060393 is a deficient number, since it is larger than the sum of its proper divisors (919255).

20060393 is a wasteful number, since it uses less digits than its factorization.

20060393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 20060393 is about 4478.8830080724. The cubic root of 20060393 is about 271.7147068158.

Adding to 20060393 its reverse (39306002), we get a palindrome (59366395).

The spelling of 20060393 in words is "twenty million, sixty thousand, three hundred ninety-three".

Divisors: 1 23 683 1277 15709 29371 872191 20060393