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89319996880 = 24553173263463
BaseRepresentation
bin101001100101111100…
…0101111110111010000
322112112212022222012121
41103023320233313100
52430411404400010
6105011045304024
76311301306112
oct1231370576720
9275485288177
1089319996880
113497589a744
1215389105014
138565c94a7a
14447488b3b2
1524cb8093da
hex14cbe2fdd0

89319996880 has 160 divisors (see below), whose sum is σ = 214080869376. Its totient is φ = 34643761152.

The previous prime is 89319996863. The next prime is 89319996881. The reversal of 89319996880 is 8869991398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89319996881) 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, 192915529 + ... + 192915991.

Almost surely, 289319996880 is an apocalyptic number.

89319996880 is a gapful number since it is divisible by the number (80) 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 89319996880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107040434688).

89319996880 is an abundant number, since it is smaller than the sum of its proper divisors (124760872496).

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

89319996880 is a wasteful number, since it uses less digits than its factorization.

89319996880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965 (or 959 counting only the distinct ones).

The product of its (nonzero) digits is 60466176, while the sum is 70.

The spelling of 89319996880 in words is "eighty-nine billion, three hundred nineteen million, nine hundred ninety-six thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 53 80 106 173 212 263 265 346 424 463 526 530 692 848 865 926 1052 1060 1315 1384 1730 1852 2104 2120 2315 2630 2768 3460 3704 4208 4240 4630 5260 6920 7408 9169 9260 10520 13840 13939 18338 18520 21040 24539 27878 36676 37040 45499 45845 49078 55756 69695 73352 80099 90998 91690 98156 111512 121769 122695 139390 146704 160198 181996 183380 196312 223024 227495 243538 245390 278780 320396 363992 366760 392624 400495 454990 487076 490780 557560 608845 640792 727984 733520 800990 909980 974152 981560 1115120 1217690 1281584 1601980 1819960 1948304 1963120 2411447 2435380 3203960 3639920 4245247 4822894 4870760 6407920 6453757 8490494 9645788 9741520 12057235 12907514 16980988 19291576 21066037 21226235 24114470 25815028 32268785 33961976 38583152 42132074 42452470 48228940 51630056 64537570 67923952 84264148 84904940 96457880 103260112 105330185 129075140 168528296 169809880 192915760 210660370 258150280 337056592 339619760 421320740 516300560 842641480 1116499961 1685282960 2232999922 4465999844 5582499805 8931999688 11164999610 17863999376 22329999220 44659998440 89319996880