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89238121 = 730894127
BaseRepresentation
bin1010101000110…
…10101001101001
320012220202200121
411110122221221
5140321104441
612504403241
72132340310
oct524325151
9205822617
1089238121
1146410a15
1225a76521
131564622b
14bbcd277
157c7add1
hex551aa69

89238121 has 8 divisors (see below), whose sum is σ = 102044160. Its totient is φ = 76446528.

The previous prime is 89238109. The next prime is 89238143. The reversal of 89238121 is 12183298.

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 89238121 - 25 = 89238089 is a prime.

It is a super-3 number, since 3×892381213 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a pancake number, because a pancake can be divided into 89238121 parts by 13359 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89238161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19560 + ... + 23686.

It is an arithmetic number, because the mean of its divisors is an integer number (12755520).

Almost surely, 289238121 is an apocalyptic number.

It is an amenable number.

89238121 is a deficient number, since it is larger than the sum of its proper divisors (12806039).

89238121 is a wasteful number, since it uses less digits than its factorization.

89238121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7223.

The product of its digits is 6912, while the sum is 34.

The square root of 89238121 is about 9446.5930895747. The cubic root of 89238121 is about 446.8723383283.

The spelling of 89238121 in words is "eighty-nine million, two hundred thirty-eight thousand, one hundred twenty-one".

Divisors: 1 7 3089 4127 21623 28889 12748303 89238121