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89609471 = 773175361
BaseRepresentation
bin1010101011101…
…01010011111111
320020121122002022
411111311103333
5140420000341
612520350355
72135445050
oct525652377
9206548068
1089609471
1146644a16
12260153bb
1315746273
14bc88727
157d00e4b
hex55754ff

89609471 has 8 divisors (see below), whose sum is σ = 103814304. Its totient is φ = 75755520.

The previous prime is 89609467. The next prime is 89609503. The reversal of 89609471 is 17490698.

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

It is a cyclic number.

It is not a de Polignac number, because 89609471 - 22 = 89609467 is a prime.

It is a super-3 number, since 3×896094713 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89609411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87170 + ... + 88191.

It is an arithmetic number, because the mean of its divisors is an integer number (12976788).

Almost surely, 289609471 is an apocalyptic number.

89609471 is a deficient number, since it is larger than the sum of its proper divisors (14204833).

89609471 is a wasteful number, since it uses less digits than its factorization.

89609471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175441.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 89609471 is about 9466.2279182365. The cubic root of 89609471 is about 447.4913427993.

The spelling of 89609471 in words is "eighty-nine million, six hundred nine thousand, four hundred seventy-one".

Divisors: 1 7 73 511 175361 1227527 12801353 89609471