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20083230 = 2325372163
BaseRepresentation
bin100110010011…
…1001000011110
31101210100000100
41030213020132
520120130410
61554241530
7332463456
oct114471036
941710010
1020083230
1110377912
1268862a6
13421228b
14294ad66
151b6a8c0
hex132721e

20083230 has 72 divisors (see below), whose sum is σ = 53995032. Its totient is φ = 5178816.

The previous prime is 20083223. The next prime is 20083243. The reversal of 20083230 is 3238002.

It is a super-2 number, since 2×200832302 = 806672254465800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 123129 + ... + 123291.

It is an arithmetic number, because the mean of its divisors is an integer number (749931).

Almost surely, 220083230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20083230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26997516).

20083230 is an abundant number, since it is smaller than the sum of its proper divisors (33911802).

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

20083230 is a wasteful number, since it uses less digits than its factorization.

20083230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20083230 is about 4481.4316908774. The cubic root of 20083230 is about 271.8177755107.

The spelling of 20083230 in words is "twenty million, eighty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 37 45 74 90 111 163 185 222 326 333 370 489 555 666 815 978 1110 1369 1467 1630 1665 2445 2738 2934 3330 4107 4890 6031 6845 7335 8214 12062 12321 13690 14670 18093 20535 24642 30155 36186 41070 54279 60310 61605 90465 108558 123210 180930 223147 271395 446294 542790 669441 1115735 1338882 2008323 2231470 3347205 4016646 6694410 10041615 20083230