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19168022424 = 23331592831543
BaseRepresentation
bin10001110110100000…
…001100111110011000
31211110212000102120110
4101312200030332120
5303224003204144
612450005124320
71246000334205
oct216640147630
954425012513
1019168022424
118146937a51
12386b3b96a0
131a66209905
14cdb9d4cac
15772bc90b9
hex47680cf98

19168022424 has 128 divisors (see below), whose sum is σ = 50514739200. Its totient is φ = 6053028480.

The previous prime is 19168022413. The next prime is 19168022431. The reversal of 19168022424 is 42422086191.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12421797 + ... + 12423339.

It is an arithmetic number, because the mean of its divisors is an integer number (394646400).

Almost surely, 219168022424 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 19168022424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25257369600).

19168022424 is an abundant number, since it is smaller than the sum of its proper divisors (31346716776).

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

19168022424 is a wasteful number, since it uses less digits than its factorization.

19168022424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925 (or 1921 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 19168022424 in words is "nineteen billion, one hundred sixty-eight million, twenty-two thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 24 31 59 62 93 118 124 177 186 236 248 283 354 372 472 566 708 744 849 1132 1416 1543 1698 1829 2264 3086 3396 3658 4629 5487 6172 6792 7316 8773 9258 10974 12344 14632 16697 17546 18516 21948 26319 33394 35092 37032 43896 47833 50091 52638 66788 70184 91037 95666 100182 105276 133576 143499 182074 191332 200364 210552 273111 286998 364148 382664 400728 436669 517607 546222 573996 728296 873338 1035214 1092444 1147992 1310007 1552821 1746676 2070428 2184888 2620014 2822147 3105642 3493352 4140856 5240028 5644294 6211284 8466441 10480056 11288588 12422568 13536739 16932882 22577176 25763471 27073478 33865764 40610217 51526942 54146956 67731528 77290413 81220434 103053884 108293912 154580826 162440868 206107768 309161652 324881736 618323304 798667601 1597335202 2396002803 3194670404 4792005606 6389340808 9584011212 19168022424