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8001838768 = 247311831597
BaseRepresentation
bin1110111001111001…
…00101111010110000
3202122122212112012211
413130330211322300
5112341432320033
63402003101504
7402202336000
oct73474457260
922578775184
108001838768
1134369139a0
121673971894
139a6a38051
1455ca26000
1531c7602cd
hex1dcf25eb0

8001838768 has 160 divisors (see below), whose sum is σ = 19973721600. Its totient is φ = 3078109440.

The previous prime is 8001838763. The next prime is 8001838811. The reversal of 8001838768 is 8678381008.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (8001838763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5009746 + ... + 5011342.

It is an arithmetic number, because the mean of its divisors is an integer number (124835760).

Almost surely, 28001838768 is an apocalyptic number.

8001838768 is a gapful number since it is divisible by the number (88) 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 8001838768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9986860800).

8001838768 is an abundant number, since it is smaller than the sum of its proper divisors (11971882832).

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

8001838768 is a wasteful number, since it uses less digits than its factorization.

8001838768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720 (or 1700 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 49.

The square root of 8001838768 is about 89452.9975350184. The cubic root of 8001838768 is about 2000.1532189283.

The spelling of 8001838768 in words is "eight billion, one million, eight hundred thirty-eight thousand, seven hundred sixty-eight".

Divisors: 1 2 4 7 8 11 14 16 22 28 44 49 56 77 83 88 98 112 154 166 176 196 308 332 343 392 539 581 616 664 686 784 913 1078 1162 1232 1328 1372 1597 1826 2156 2324 2744 3194 3652 3773 4067 4312 4648 5488 6388 6391 7304 7546 8134 8624 9296 11179 12776 12782 14608 15092 16268 17567 22358 25552 25564 28469 30184 32536 35134 44716 44737 51128 56938 60368 65072 70268 78253 89432 89474 102256 113876 122969 132551 140536 156506 178864 178948 227752 245938 265102 281072 313012 313159 357896 455504 491876 530204 547771 626024 626318 715792 860783 927857 983752 1060408 1095542 1252048 1252636 1458061 1721566 1855714 1967504 2120816 2191084 2505272 2916122 3443132 3711428 4382168 5010544 5832244 6025481 6494999 6886264 7422856 8764336 10206427 11664488 12050962 12989998 13772528 14845712 20412854 23328976 24101924 25979996 40825708 45464993 48203848 51959992 71444989 81651416 90929986 96407696 103919984 142889978 163302832 181859972 285779956 363719944 500114923 571559912 727439888 1000229846 1143119824 2000459692 4000919384 8001838768