Search a number
-
+
89473489 = 719235407
BaseRepresentation
bin1010101010101…
…00000111010001
320020100201112221
411111110013101
5140401122424
612513421041
72134340440
oct525240721
9206321487
1089473489
1146561836
1225b6a781
13156c93c1
14bc50d57
157cc59e4
hex55541d1

89473489 has 12 divisors (see below), whose sum is σ = 107923584. Its totient is φ = 72653112.

The previous prime is 89473481. The next prime is 89473523. The reversal of 89473489 is 98437498.

It is not a de Polignac number, because 89473489 - 23 = 89473481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89473481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15177 + ... + 20230.

It is an arithmetic number, because the mean of its divisors is an integer number (8993632).

Almost surely, 289473489 is an apocalyptic number.

It is an amenable number.

89473489 is a deficient number, since it is larger than the sum of its proper divisors (18450095).

89473489 is a wasteful number, since it uses less digits than its factorization.

89473489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35452 (or 35433 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The square root of 89473489 is about 9459.0427105495. The cubic root of 89473489 is about 447.2648727870.

The spelling of 89473489 in words is "eighty-nine million, four hundred seventy-three thousand, four hundred eighty-nine".

Divisors: 1 7 19 133 361 2527 35407 247849 672733 4709131 12781927 89473489