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70234085 = 529484373
BaseRepresentation
bin1000010111110…
…10111111100101
311220011021001102
410023322333211
5120434442320
610545205445
71511660045
oct413727745
9156137042
1070234085
11367109a9
121b630885
131172123c
149483725
156275175
hex42fafe5

70234085 has 8 divisors (see below), whose sum is σ = 87187320. Its totient is φ = 54249664.

The previous prime is 70234069. The next prime is 70234117. The reversal of 70234085 is 58043207.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4153444 + 66080641 = 2038^2 + 8129^2 .

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 70234085 - 24 = 70234069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 242042 + ... + 242331.

It is an arithmetic number, because the mean of its divisors is an integer number (10898415).

Almost surely, 270234085 is an apocalyptic number.

It is an amenable number.

70234085 is a deficient number, since it is larger than the sum of its proper divisors (16953235).

70234085 is a wasteful number, since it uses less digits than its factorization.

70234085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484407.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 70234085 is about 8380.5778440392. The cubic root of 70234085 is about 412.5874145934.

The spelling of 70234085 in words is "seventy million, two hundred thirty-four thousand, eighty-five".

Divisors: 1 5 29 145 484373 2421865 14046817 70234085