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20740333 = 31809827
BaseRepresentation
bin100111100011…
…1100011101101
31110000201101111
41033013203231
520302142313
62020312021
7341201305
oct117074355
943021344
1020740333
1110786579
126b42611
1343b23b3
142a7c605
151c4a43d
hex13c78ed

20740333 has 8 divisors (see below), whose sum is σ = 21461760. Its totient is φ = 20022240.

The previous prime is 20740297. The next prime is 20740351. The reversal of 20740333 is 33304702.

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 20740333 - 213 = 20732141 is a prime.

It is a super-2 number, since 2×207403332 = 860322825901778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20740373) 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, 24666 + ... + 25492.

It is an arithmetic number, because the mean of its divisors is an integer number (2682720).

Almost surely, 220740333 is an apocalyptic number.

It is an amenable number.

20740333 is a deficient number, since it is larger than the sum of its proper divisors (721427).

20740333 is an equidigital number, since it uses as much as digits as its factorization.

20740333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667.

The product of its (nonzero) digits is 1512, while the sum is 22.

The square root of 20740333 is about 4554.1555748569. The cubic root of 20740333 is about 274.7505528631.

The spelling of 20740333 in words is "twenty million, seven hundred forty thousand, three hundred thirty-three".

Divisors: 1 31 809 827 25079 25637 669043 20740333