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19168968 = 23371367131
BaseRepresentation
bin100100100011…
…1111011001000
31100001212212210
41021013323020
514401401333
61522505120
7321635130
oct111077310
940055783
1019168968
11a902a25
1265051a0
133c820b0
14278dac0
151a39a63
hex1247ec8

19168968 has 128 divisors (see below), whose sum is σ = 60318720. Its totient is φ = 4942080.

The previous prime is 19168937. The next prime is 19168969. The reversal of 19168968 is 86986191.

It is not an unprimeable number, because it can be changed into a prime (19168969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146263 + ... + 146393.

It is an arithmetic number, because the mean of its divisors is an integer number (471240).

Almost surely, 219168968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19168968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30159360).

19168968 is an abundant number, since it is smaller than the sum of its proper divisors (41149752).

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

19168968 is a wasteful number, since it uses less digits than its factorization.

19168968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 223 counting only the distinct ones).

The product of its digits is 186624, while the sum is 48.

The square root of 19168968 is about 4378.2380017537. The cubic root of 19168968 is about 267.6288394407.

The spelling of 19168968 in words is "nineteen million, one hundred sixty-eight thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 13 14 21 24 26 28 39 42 52 56 67 78 84 91 104 131 134 156 168 182 201 262 268 273 312 364 393 402 469 524 536 546 728 786 804 871 917 938 1048 1092 1407 1572 1608 1703 1742 1834 1876 2184 2613 2751 2814 3144 3406 3484 3668 3752 5109 5226 5502 5628 6097 6812 6968 7336 8777 10218 10452 11004 11256 11921 12194 13624 17554 18291 20436 20904 22008 23842 24388 26331 35108 35763 36582 40872 47684 48776 52662 61439 70216 71526 73164 95368 105324 114101 122878 143052 146328 184317 210648 228202 245756 286104 342303 368634 456404 491512 684606 737268 798707 912808 1369212 1474536 1597414 2396121 2738424 3194828 4792242 6389656 9584484 19168968