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20092961 = 723373373
BaseRepresentation
bin100110010100…
…1100000100001
31101210211100202
41030221200201
520120433321
61554354545
7332534030
oct114514041
941724322
1020092961
1110384159
12688ba55
134216835
142950717
151b6d70b
hex1329821

20092961 has 16 divisors (see below), whose sum is σ = 24616704. Its totient is φ = 16023744.

The previous prime is 20092957. The next prime is 20092979. The reversal of 20092961 is 16929002.

It is a cyclic number.

It is not a de Polignac number, because 20092961 - 22 = 20092957 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20092901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4271 + ... + 7643.

It is an arithmetic number, because the mean of its divisors is an integer number (1538544).

Almost surely, 220092961 is an apocalyptic number.

It is an amenable number.

20092961 is a deficient number, since it is larger than the sum of its proper divisors (4523743).

20092961 is a wasteful number, since it uses less digits than its factorization.

20092961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3440.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 20092961 is about 4482.5172615395. The cubic root of 20092961 is about 271.8616700383.

The spelling of 20092961 in words is "twenty million, ninety-two thousand, nine hundred sixty-one".

Divisors: 1 7 23 37 161 259 851 3373 5957 23611 77579 124801 543053 873607 2870423 20092961