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89353972380 = 22354144980897
BaseRepresentation
bin101001100110111101…
…0010110101010011100
322112122020021002211110
41103031322112222130
52430444104104010
6105014301422020
76312163143051
oct1231572265234
9275566232743
1089353972380
1134992a95a72
121539856a910
13857002c40a
1444791b3028
1524ce7bb120
hex14cde96a9c

89353972380 has 96 divisors (see below), whose sum is σ = 256867329600. Its totient is φ = 23194501120.

The previous prime is 89353972349. The next prime is 89353972397. The reversal of 89353972380 is 8327935398.

It is a self number, because there is not a number n which added to its sum of digits gives 89353972380.

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, 1064092 + ... + 1144988.

It is an arithmetic number, because the mean of its divisors is an integer number (2675701350).

Almost surely, 289353972380 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 89353972380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128433664800).

89353972380 is an abundant number, since it is smaller than the sum of its proper divisors (167513357220).

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

89353972380 is a wasteful number, since it uses less digits than its factorization.

89353972380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81399 (or 81397 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 89353972380 in words is "eighty-nine billion, three hundred fifty-three million, nine hundred seventy-two thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 41 60 82 123 164 205 246 410 449 492 615 820 898 1230 1347 1796 2245 2460 2694 4490 5388 6735 8980 13470 18409 26940 36818 55227 73636 80897 92045 110454 161794 184090 220908 242691 276135 323588 368180 404485 485382 552270 808970 970764 1104540 1213455 1617940 2426910 3316777 4853820 6633554 9950331 13267108 16583885 19900662 33167770 36322753 39801324 49751655 66335540 72645506 99503310 108968259 145291012 181613765 199006620 217936518 363227530 435873036 544841295 726455060 1089682590 1489232873 2179365180 2978465746 4467698619 5956931492 7446164365 8935397238 14892328730 17870794476 22338493095 29784657460 44676986190 89353972380