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70447085 = 515798923
BaseRepresentation
bin1000011001011…
…10111111101101
311220120002020022
410030232333231
5121013301320
610553531525
71513535042
oct414567755
9156502208
1070447085
1136846a35
121b713ba5
1311797187
1494db1c9
1562b8325
hex432efed

70447085 has 8 divisors (see below), whose sum is σ = 84599520. Its totient is φ = 56315664.

The previous prime is 70447081. The next prime is 70447141. The reversal of 70447085 is 58074407.

It is a happy number.

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 70447085 - 22 = 70447081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70447081) 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 7 ways as a sum of consecutive naturals, for example, 3434 + ... + 12356.

It is an arithmetic number, because the mean of its divisors is an integer number (10574940).

Almost surely, 270447085 is an apocalyptic number.

It is an amenable number.

70447085 is a deficient number, since it is larger than the sum of its proper divisors (14152435).

70447085 is a wasteful number, since it uses less digits than its factorization.

70447085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10507.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 70447085 is about 8393.2761779891. The cubic root of 70447085 is about 413.0040804198.

The spelling of 70447085 in words is "seventy million, four hundred forty-seven thousand, eighty-five".

Divisors: 1 5 1579 7895 8923 44615 14089417 70447085