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89008399 = 172151719
BaseRepresentation
bin1010100111000…
…10100100001111
320012111002120101
411103202210033
5140241232044
612455431531
72130362464
oct523424417
9205432511
1089008399
1146274367
12259855a7
13155957bc
14bb6d66b
157c32cd4
hex54e290f

89008399 has 4 divisors (see below), whose sum is σ = 89061840. Its totient is φ = 88954960.

The previous prime is 89008397. The next prime is 89008411. The reversal of 89008399 is 99380098.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99380098 = 249690049.

It is a cyclic number.

It is not a de Polignac number, because 89008399 - 21 = 89008397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89008391) 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 3 ways as a sum of consecutive naturals, for example, 24139 + ... + 27580.

It is an arithmetic number, because the mean of its divisors is an integer number (22265460).

Almost surely, 289008399 is an apocalyptic number.

89008399 is a deficient number, since it is larger than the sum of its proper divisors (53441).

89008399 is a wasteful number, since it uses less digits than its factorization.

89008399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53440.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 89008399 is about 9434.4262676646. The cubic root of 89008399 is about 446.4885538335.

The spelling of 89008399 in words is "eighty-nine million, eight thousand, three hundred ninety-nine".

Divisors: 1 1721 51719 89008399