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20092055 = 519312081
BaseRepresentation
bin100110010100…
…1010010010111
31101210210010012
41030221102113
520120421210
61554350435
7332531264
oct114512227
941723105
1020092055
1110383505
12688b41b
1342162b9
14295026b
151b6d305
hex1329497

20092055 has 8 divisors (see below), whose sum is σ = 24134544. Its totient is φ = 16057600.

The previous prime is 20092049. The next prime is 20092057. The reversal of 20092055 is 55029002.

It is a happy number.

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

It is not a de Polignac number, because 20092055 - 222 = 15897751 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20092055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20092057) 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, 8615 + ... + 10695.

It is an arithmetic number, because the mean of its divisors is an integer number (3016818).

Almost surely, 220092055 is an apocalyptic number.

20092055 is a deficient number, since it is larger than the sum of its proper divisors (4042489).

20092055 is a wasteful number, since it uses less digits than its factorization.

20092055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4017.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 20092055 is about 4482.4162011130. The cubic root of 20092055 is about 271.8575838582.

The spelling of 20092055 in words is "twenty million, ninety-two thousand, fifty-five".

Divisors: 1 5 1931 2081 9655 10405 4018411 20092055