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89505655 = 559303409
BaseRepresentation
bin1010101010110…
…11111101110111
320020102100200021
411111123331313
5140403140110
612514230011
72134533301
oct525337567
9206370607
1089505655
1146583a18
1225b85307
131570ac35
14bc5c971
157cd02da
hex555bf77

89505655 has 8 divisors (see below), whose sum is σ = 109227600. Its totient is φ = 70390656.

The previous prime is 89505613. The next prime is 89505659. The reversal of 89505655 is 55650598.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-89505655 is a prime.

It is a super-3 number, since 3×895056553 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89505659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151410 + ... + 151999.

It is an arithmetic number, because the mean of its divisors is an integer number (13653450).

Almost surely, 289505655 is an apocalyptic number.

89505655 is a deficient number, since it is larger than the sum of its proper divisors (19721945).

89505655 is a wasteful number, since it uses less digits than its factorization.

89505655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303473.

The product of its (nonzero) digits is 270000, while the sum is 43.

The square root of 89505655 is about 9460.7428355283. The cubic root of 89505655 is about 447.3184640737.

The spelling of 89505655 in words is "eighty-nine million, five hundred five thousand, six hundred fifty-five".

Divisors: 1 5 59 295 303409 1517045 17901131 89505655