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89284080 = 24351093413
BaseRepresentation
bin1010101001001…
…01110111110000
320020000002201210
411110211313300
5140324042310
612505400120
72132621304
oct524456760
9206002653
1089284080
11464424a6
1225a99040
1315661122
14bc01d04
157c89820
hex5525df0

89284080 has 80 divisors (see below), whose sum is σ = 279401760. Its totient is φ = 23583744.

The previous prime is 89284073. The next prime is 89284087. The reversal of 89284080 is 8048298.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (89284073) and next prime (89284087).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89284087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24454 + ... + 27866.

It is an arithmetic number, because the mean of its divisors is an integer number (3492522).

Almost surely, 289284080 is an apocalyptic number.

89284080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89284080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139700880).

89284080 is an abundant number, since it is smaller than the sum of its proper divisors (190117680).

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

89284080 is a wasteful number, since it uses less digits than its factorization.

89284080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538 (or 3532 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 89284080 is about 9449.0253465635. The cubic root of 89284080 is about 446.9490405299.

The spelling of 89284080 in words is "eighty-nine million, two hundred eighty-four thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 109 120 218 240 327 436 545 654 872 1090 1308 1635 1744 2180 2616 3270 3413 4360 5232 6540 6826 8720 10239 13080 13652 17065 20478 26160 27304 34130 40956 51195 54608 68260 81912 102390 136520 163824 204780 273040 372017 409560 744034 819120 1116051 1488068 1860085 2232102 2976136 3720170 4464204 5580255 5952272 7440340 8928408 11160510 14880680 17856816 22321020 29761360 44642040 89284080