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70075085 = 514015017
BaseRepresentation
bin1000010110101…
…00001011001101
311212212011221112
410023110023031
5120414400320
610541541405
71510425353
oct413241315
9155764845
1070075085
11366124a3
121b574865
1311696a62
1494417d3
156242ec5
hex42d42cd

70075085 has 4 divisors (see below), whose sum is σ = 84090108. Its totient is φ = 56060064.

The previous prime is 70075081. The next prime is 70075111. The reversal of 70075085 is 58057007.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25532809 + 44542276 = 5053^2 + 6674^2 .

It is a cyclic number.

It is not a de Polignac number, because 70075085 - 22 = 70075081 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 (70075081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7007504 + ... + 7007513.

It is an arithmetic number, because the mean of its divisors is an integer number (21022527).

Almost surely, 270075085 is an apocalyptic number.

It is an amenable number.

70075085 is a deficient number, since it is larger than the sum of its proper divisors (14015023).

70075085 is a wasteful number, since it uses less digits than its factorization.

70075085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14015022.

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 70075085 is about 8371.0862497050. The cubic root of 70075085 is about 412.2758329002.

The spelling of 70075085 in words is "seventy million, seventy-five thousand, eighty-five".

Divisors: 1 5 14015017 70075085