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70089 = 361383
BaseRepresentation
bin10001000111001001
310120010220
4101013021
54220324
61300253
7411225
oct210711
9116126
1070089
1148728
1234689
1325b96
141b785
1515b79
hex111c9

70089 has 8 divisors (see below), whose sum is σ = 95232. Its totient is φ = 45840.

The previous prime is 70079. The next prime is 70099. The reversal of 70089 is 98007.

It is an interprime number because it is at equal distance from previous prime (70079) and next prime (70099).

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

It is not a de Polignac number, because 70089 - 28 = 69833 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

70089 is a lucky number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (70009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9 + ... + 374.

It is an arithmetic number, because the mean of its divisors is an integer number (11904).

270089 is an apocalyptic number.

It is an amenable number.

70089 is a deficient number, since it is larger than the sum of its proper divisors (25143).

70089 is a wasteful number, since it uses less digits than its factorization.

70089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 70089 is about 264.7432718692. The cubic root of 70089 is about 41.2303120005.

The spelling of 70089 in words is "seventy thousand, eighty-nine".

Divisors: 1 3 61 183 383 1149 23363 70089