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89988039 = 32591371237
BaseRepresentation
bin1010101110100…
…01101111000111
320021022212101100
411113101233013
5141014104124
612532431143
72141612541
oct527215707
9207285340
1089988039
1146883389
12261784b3
131584967b
14bd46691
157d781c9
hex55d1bc7

89988039 has 24 divisors (see below), whose sum is σ = 133258320. Its totient is φ = 58497408.

The previous prime is 89988037. The next prime is 89988061. The reversal of 89988039 is 93088998.

It is not a de Polignac number, because 89988039 - 21 = 89988037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89988037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72129 + ... + 73365.

It is an arithmetic number, because the mean of its divisors is an integer number (5552430).

Almost surely, 289988039 is an apocalyptic number.

89988039 is a deficient number, since it is larger than the sum of its proper divisors (43270281).

89988039 is a wasteful number, since it uses less digits than its factorization.

89988039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 89988039 is about 9486.2025595071. The cubic root of 89988039 is about 448.1206211532.

The spelling of 89988039 in words is "eighty-nine million, nine hundred eighty-eight thousand, thirty-nine".

Divisors: 1 3 9 59 137 177 411 531 1233 1237 3711 8083 11133 24249 72747 72983 169469 218949 508407 656847 1525221 9998671 29996013 89988039