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20092956 = 22313196779
BaseRepresentation
bin100110010100…
…1100000011100
31101210211100120
41030221200130
520120433311
61554354540
7332534022
oct114514034
941724316
1020092956
1110384154
12688ba50
134216830
142950712
151b6d706
hex132981c

20092956 has 48 divisors (see below), whose sum is σ = 53155200. Its totient is φ = 5856192.

The previous prime is 20092927. The next prime is 20092957. The reversal of 20092956 is 65929002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20092957) 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, 426 + ... + 6353.

It is an arithmetic number, because the mean of its divisors is an integer number (1107400).

Almost surely, 220092956 is an apocalyptic number.

20092956 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20092956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26577600).

20092956 is an abundant number, since it is smaller than the sum of its proper divisors (33062244).

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

20092956 is a wasteful number, since it uses less digits than its factorization.

20092956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6818 (or 6816 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 20092956 is about 4482.5167038172. The cubic root of 20092956 is about 271.8616474880.

The spelling of 20092956 in words is "twenty million, ninety-two thousand, nine hundred fifty-six".

Divisors: 1 2 3 4 6 12 13 19 26 38 39 52 57 76 78 114 156 228 247 494 741 988 1482 2964 6779 13558 20337 27116 40674 81348 88127 128801 176254 257602 264381 352508 386403 515204 528762 772806 1057524 1545612 1674413 3348826 5023239 6697652 10046478 20092956