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20893110 = 2357261233
BaseRepresentation
bin100111110110…
…0110110110110
31110022110221220
41033230312312
520322034420
62023451210
7342405600
oct117546666
943273856
1020893110
1110880337
126bb6b06
134436ab4
142abc170
151c7a840
hex13ecdb6

20893110 has 96 divisors (see below), whose sum is σ = 59540832. Its totient is φ = 4677120.

The previous prime is 20893109. The next prime is 20893127. The reversal of 20893110 is 1139802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89554 + ... + 89786.

It is an arithmetic number, because the mean of its divisors is an integer number (620217).

Almost surely, 220893110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20893110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29770416).

20893110 is an abundant number, since it is smaller than the sum of its proper divisors (38647722).

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

20893110 is a wasteful number, since it uses less digits than its factorization.

20893110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 20893110 is about 4570.8981611933. The cubic root of 20893110 is about 275.4235237107.

The spelling of 20893110 in words is "twenty million, eight hundred ninety-three thousand, one hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 49 61 70 98 105 122 147 183 210 233 245 294 305 366 427 466 490 610 699 735 854 915 1165 1281 1398 1470 1631 1830 2135 2330 2562 2989 3262 3495 4270 4893 5978 6405 6990 8155 8967 9786 11417 12810 14213 14945 16310 17934 22834 24465 28426 29890 34251 42639 44835 48930 57085 68502 71065 85278 89670 99491 114170 142130 171255 198982 213195 298473 342510 426390 497455 596946 696437 994910 1392874 1492365 2089311 2984730 3482185 4178622 6964370 10446555 20893110