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89007871 = 373238627
BaseRepresentation
bin1010100111000…
…10011011111111
320012111001211211
411103202123333
5140241222441
612455425251
72130361111
oct523423377
9205431754
1089007871
1146273a27
1225985227
13155954a4
14bb6d3b1
157c32a81
hex54e26ff

89007871 has 4 divisors (see below), whose sum is σ = 89246872. Its totient is φ = 88768872.

The previous prime is 89007839. The next prime is 89007881. The reversal of 89007871 is 17870098.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17870098 = 28935049.

It is a cyclic number.

It is not a de Polignac number, because 89007871 - 25 = 89007839 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 (89007811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118941 + ... + 119686.

It is an arithmetic number, because the mean of its divisors is an integer number (22311718).

Almost surely, 289007871 is an apocalyptic number.

89007871 is a deficient number, since it is larger than the sum of its proper divisors (239001).

89007871 is a wasteful number, since it uses less digits than its factorization.

89007871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239000.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 89007871 is about 9434.3982849994. The cubic root of 89007871 is about 446.4876709715.

The spelling of 89007871 in words is "eighty-nine million, seven thousand, eight hundred seventy-one".

Divisors: 1 373 238627 89007871