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89530623 = 3371322803
BaseRepresentation
bin1010101011000…
…10000011111111
320020110121221000
411111202003333
5140404434443
612514541343
72134666140
oct525420377
9206417830
1089530623
11465a0756
1225b97853
1315719400
14bc67ac7
157cd78d3
hex55620ff

89530623 has 48 divisors (see below), whose sum is σ = 164202240. Its totient is φ = 47208096.

The previous prime is 89530583. The next prime is 89530633. The reversal of 89530623 is 32603598.

It is not a de Polignac number, because 89530623 - 28 = 89530367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89530633) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30540 + ... + 33342.

It is an arithmetic number, because the mean of its divisors is an integer number (3420880).

Almost surely, 289530623 is an apocalyptic number.

89530623 is a deficient number, since it is larger than the sum of its proper divisors (74671617).

89530623 is a wasteful number, since it uses less digits than its factorization.

89530623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845 (or 2826 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 89530623 is about 9462.0623016338. The cubic root of 89530623 is about 447.3600540309.

Subtracting from 89530623 its reverse (32603598), we obtain a square (56927025 = 75452).

The spelling of 89530623 in words is "eighty-nine million, five hundred thirty thousand, six hundred twenty-three".

Divisors: 1 3 7 9 13 21 27 39 63 91 117 169 189 273 351 507 819 1183 1521 2457 2803 3549 4563 8409 10647 19621 25227 31941 36439 58863 75681 109317 176589 255073 327951 473707 529767 765219 983853 1421121 2295657 3315949 4263363 6886971 9947847 12790089 29843541 89530623