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89045955 = 3251978799
BaseRepresentation
bin1010100111010…
…11101111000011
320012120000002100
411103223233003
5140243432310
612500321443
72130610125
oct523535703
9205500070
1089045955
114629a5a9
12259a3283
13155a991b
14bb7d215
157c3dec0
hex54ebbc3

89045955 has 12 divisors (see below), whose sum is σ = 154346400. Its totient is φ = 47491152.

The previous prime is 89045947. The next prime is 89045959. The reversal of 89045955 is 55954098.

It is not a de Polignac number, because 89045955 - 23 = 89045947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1978799 = 89045955 / (8 + 9 + 0 + 4 + 5 + 9 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 89045955.

It is not an unprimeable number, because it can be changed into a prime (89045959) 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, 989355 + ... + 989444.

It is an arithmetic number, because the mean of its divisors is an integer number (12862200).

Almost surely, 289045955 is an apocalyptic number.

89045955 is a deficient number, since it is larger than the sum of its proper divisors (65300445).

89045955 is a wasteful number, since it uses less digits than its factorization.

89045955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978810 (or 1978807 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 45.

The square root of 89045955 is about 9436.4164278607. The cubic root of 89045955 is about 446.5513417894.

It can be divided in two parts, 89045 and 955, that added together give a square (90000 = 3002).

The spelling of 89045955 in words is "eighty-nine million, forty-five thousand, nine hundred fifty-five".

Divisors: 1 3 5 9 15 45 1978799 5936397 9893995 17809191 29681985 89045955