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20943102 = 233490517
BaseRepresentation
bin100111111100…
…1000011111110
31110102000112110
41033321003332
520330134402
62024514450
7343004415
oct117710376
943360473
1020943102
1110904954
12701ba26
13445378b
142ad247c
151c8a56c
hex13f90fe

20943102 has 8 divisors (see below), whose sum is σ = 41886216. Its totient is φ = 6981032.

The previous prime is 20943089. The next prime is 20943103. The reversal of 20943102 is 20134902.

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

20943102 is an admirable number.

It is a super-2 number, since 2×209431022 = 877227042764808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20943103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1745253 + ... + 1745264.

It is an arithmetic number, because the mean of its divisors is an integer number (5235777).

Almost surely, 220943102 is an apocalyptic number.

20943102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20943102 is a wasteful number, since it uses less digits than its factorization.

20943102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490522.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 20943102 is about 4576.3634034023. The cubic root of 20943102 is about 275.6430219961.

The spelling of 20943102 in words is "twenty million, nine hundred forty-three thousand, one hundred two".

Divisors: 1 2 3 6 3490517 6981034 10471551 20943102