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89718960 = 2435312389
BaseRepresentation
bin1010101100100…
…00000010110000
320020211012021110
411112100002300
5140432001320
612522553320
72136412212
oct526200260
9206735243
1089718960
114670a201
1226068840
1315784056
14bcb65b2
157d235e0
hex55900b0

89718960 has 120 divisors (see below), whose sum is σ = 288128880. Its totient is φ = 23093760.

The previous prime is 89718943. The next prime is 89718961. The reversal of 89718960 is 6981798.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (89718961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230446 + ... + 230834.

It is an arithmetic number, because the mean of its divisors is an integer number (2401074).

Almost surely, 289718960 is an apocalyptic number.

89718960 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 89718960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144064440).

89718960 is an abundant number, since it is smaller than the sum of its proper divisors (198409920).

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

89718960 is a wasteful number, since it uses less digits than its factorization.

89718960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 89718960 is about 9472.0092905360. The cubic root of 89718960 is about 447.6735238333.

The spelling of 89718960 in words is "eighty-nine million, seven hundred eighteen thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 40 48 60 62 80 93 120 124 155 186 240 248 310 372 389 465 496 620 744 778 930 961 1167 1240 1488 1556 1860 1922 1945 2334 2480 2883 3112 3720 3844 3890 4668 4805 5766 5835 6224 7440 7688 7780 9336 9610 11532 11670 12059 14415 15376 15560 18672 19220 23064 23340 24118 28830 31120 36177 38440 46128 46680 48236 57660 60295 72354 76880 93360 96472 115320 120590 144708 180885 192944 230640 241180 289416 361770 373829 482360 578832 723540 747658 964720 1121487 1447080 1495316 1869145 2242974 2894160 2990632 3738290 4485948 5607435 5981264 7476580 8971896 11214870 14953160 17943792 22429740 29906320 44859480 89718960