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193038120 = 233351116249
BaseRepresentation
bin10111000000110…
…00011100101000
3111110020100112000
423200120130220
5343404204440
631053251000
74532540232
oct1340303450
9443210460
10193038120
1199a68440
1254793a60
1330cba552
141b8cd252
1511e31730
hexb818728

193038120 has 128 divisors (see below), whose sum is σ = 702000000. Its totient is φ = 46794240.

The previous prime is 193038113. The next prime is 193038173. The reversal of 193038120 is 21830391.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3756 + ... + 20004.

It is an arithmetic number, because the mean of its divisors is an integer number (5484375).

Almost surely, 2193038120 is an apocalyptic number.

193038120 is a gapful number since it is divisible by the number (10) 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 193038120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351000000).

193038120 is an abundant number, since it is smaller than the sum of its proper divisors (508961880).

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

193038120 is a wasteful number, since it uses less digits than its factorization.

193038120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16280 (or 16270 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 193038120 is about 13893.8158905320. The cubic root of 193038120 is about 577.9377015665.

The spelling of 193038120 in words is "one hundred ninety-three million, thirty-eight thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 27 30 33 36 40 44 45 54 55 60 66 72 88 90 99 108 110 120 132 135 165 180 198 216 220 264 270 297 330 360 396 440 495 540 594 660 792 990 1080 1188 1320 1485 1980 2376 2970 3960 5940 11880 16249 32498 48747 64996 81245 97494 129992 146241 162490 178739 194988 243735 292482 324980 357478 389976 438723 487470 536217 584964 649960 714956 731205 877446 893695 974940 1072434 1169928 1429912 1462410 1608651 1754892 1787390 1949880 2144868 2193615 2681085 2924820 3217302 3509784 3574780 4289736 4387230 4825953 5362170 5849640 6434604 7149560 8043255 8774460 9651906 10724340 12869208 16086510 17548920 19303812 21448680 24129765 32173020 38607624 48259530 64346040 96519060 193038120