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89038881 = 329893209
BaseRepresentation
bin1010100111010…
…10000000100001
320012112122101100
411103222000201
5140243221011
612500225013
72130550401
oct523520041
9205478340
1089038881
1146295258
122599b169
13155a6639
14bb7a801
157c3bd56
hex54ea021

89038881 has 6 divisors (see below), whose sum is σ = 128611730. Its totient is φ = 59359248.

The previous prime is 89038871. The next prime is 89038897. The reversal of 89038881 is 18883098.

It can be written as a sum of positive squares in only one way, i.e., 46580625 + 42458256 = 6825^2 + 6516^2 .

It is not a de Polignac number, because 89038881 - 27 = 89038753 is a prime.

It is a super-2 number, since 2×890388812 = 15855844659464322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89038801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4946596 + ... + 4946613.

Almost surely, 289038881 is an apocalyptic number.

It is an amenable number.

89038881 is a deficient number, since it is larger than the sum of its proper divisors (39572849).

89038881 is a wasteful number, since it uses less digits than its factorization.

89038881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9893215 (or 9893212 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 89038881 is about 9436.0415959236. The cubic root of 89038881 is about 446.5395164802.

The spelling of 89038881 in words is "eighty-nine million, thirty-eight thousand, eight hundred eighty-one".

Divisors: 1 3 9 9893209 29679627 89038881