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89106212 = 221329371597
BaseRepresentation
bin1010100111110…
…10011100100100
320012200001202002
411103322130210
5140302344322
612501504432
72131250606
oct523723444
9205601662
1089106212
11463308a8
1225a12118
13155cb190
14bb97176
157c51c92
hex54fa724

89106212 has 48 divisors (see below), whose sum is σ = 178528560. Its totient is φ = 38610432.

The previous prime is 89106203. The next prime is 89106217. The reversal of 89106212 is 21260198.

It can be written as a sum of positive squares in 8 ways, for example, as 1196836 + 87909376 = 1094^2 + 9376^2 .

It is a super-3 number, since 3×891062123 (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (89106217) 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, 54998 + ... + 56594.

It is an arithmetic number, because the mean of its divisors is an integer number (3719345).

Almost surely, 289106212 is an apocalyptic number.

It is an amenable number.

89106212 is an abundant number, since it is smaller than the sum of its proper divisors (89422348).

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

89106212 is a wasteful number, since it uses less digits than its factorization.

89106212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680 (or 1678 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 89106212 is about 9439.6086783298. The cubic root of 89106212 is about 446.6520455104.

The spelling of 89106212 in words is "eighty-nine million, one hundred six thousand, two hundred twelve".

Divisors: 1 2 4 13 26 29 37 52 58 74 116 148 377 481 754 962 1073 1508 1597 1924 2146 3194 4292 6388 13949 20761 27898 41522 46313 55796 59089 83044 92626 118178 185252 236356 602069 768157 1204138 1536314 1713581 2408276 3072628 3427162 6854324 22276553 44553106 89106212