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89012389 = 271503653
BaseRepresentation
bin1010100111000…
…11100010100101
320012111022001011
411103203202211
5140241344024
612455502221
72130410224
oct523434245
9205438034
1089012389
1146277364
1225987971
131559756b
14bb70cbb
157c34094
hex54e38a5

89012389 has 8 divisors (see below), whose sum is σ = 89655552. Its totient is φ = 88372080.

The previous prime is 89012351. The next prime is 89012401. The reversal of 89012389 is 98321098.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89012389 - 29 = 89011877 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89012489) 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 7 ways as a sum of consecutive naturals, for example, 135987 + ... + 136639.

It is an arithmetic number, because the mean of its divisors is an integer number (11206944).

Almost surely, 289012389 is an apocalyptic number.

It is an amenable number.

89012389 is a deficient number, since it is larger than the sum of its proper divisors (643163).

89012389 is a wasteful number, since it uses less digits than its factorization.

89012389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 89012389 is about 9434.6377248944. The cubic root of 89012389 is about 446.4952253489.

It can be divided in two parts, 89012 and 389, that added together give a square (89401 = 2992).

The spelling of 89012389 in words is "eighty-nine million, twelve thousand, three hundred eighty-nine".

Divisors: 1 271 503 653 136313 176963 328459 89012389