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89697960 = 233251122651
BaseRepresentation
bin1010101100010…
…10111010101000
320020210010110200
411112022322220
5140430313320
612522312200
72136264042
oct526127250
9206703420
1089697960
11466a5450
1226058660
1315777621
14bcaca92
157d1c290
hex558aea8

89697960 has 96 divisors (see below), whose sum is σ = 318034080. Its totient is φ = 21744000.

The previous prime is 89697901. The next prime is 89697961. The reversal of 89697960 is 6979698.

It is a junction number, because it is equal to n+sod(n) for n = 89697897 and 89697906.

It is not an unprimeable number, because it can be changed into a prime (89697961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7366 + ... + 15285.

It is an arithmetic number, because the mean of its divisors is an integer number (3312855).

Almost surely, 289697960 is an apocalyptic number.

It is an amenable number.

89697960 is an abundant number, since it is smaller than the sum of its proper divisors (228336120).

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

89697960 is a wasteful number, since it uses less digits than its factorization.

89697960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22679 (or 22672 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 89697960 is about 9470.9006963435. The cubic root of 89697960 is about 447.6385929870.

The spelling of 89697960 in words is "eighty-nine million, six hundred ninety-seven thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 30 33 36 40 44 45 55 60 66 72 88 90 99 110 120 132 165 180 198 220 264 330 360 396 440 495 660 792 990 1320 1980 3960 22651 45302 67953 90604 113255 135906 181208 203859 226510 249161 271812 339765 407718 453020 498322 543624 679530 747483 815436 906040 996644 1019295 1245805 1359060 1494966 1630872 1993288 2038590 2242449 2491610 2718120 2989932 3737415 4077180 4484898 4983220 5979864 7474830 8154360 8969796 9966440 11212245 14949660 17939592 22424490 29899320 44848980 89697960