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89430 = 23511271
BaseRepresentation
bin10101110101010110
311112200020
4111311112
510330210
61530010
7521505
oct256526
9145606
1089430
1161210
1243906
1331923
142483c
151b770
hex15d56

89430 has 32 divisors (see below), whose sum is σ = 235008. Its totient is φ = 21600.

The previous prime is 89417. The next prime is 89431. The reversal of 89430 is 3498.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 89430.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 89430.

It is not an unprimeable number, because it can be changed into a prime (89431) by changing a digit.

89430 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195 + ... + 465.

It is an arithmetic number, because the mean of its divisors is an integer number (7344).

289430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117504).

89430 is an abundant number, since it is smaller than the sum of its proper divisors (145578).

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

89430 is a wasteful number, since it uses less digits than its factorization.

89430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 89430 is about 299.0484910512. The cubic root of 89430 is about 44.7192395995.

The spelling of 89430 in words is "eighty-nine thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 271 330 542 813 1355 1626 2710 2981 4065 5962 8130 8943 14905 17886 29810 44715 89430