Search a number
-
+
70085029 = 726338069
BaseRepresentation
bin1000010110101…
…10100110100101
311212212200120211
410023112212211
5120420210104
610542055421
71510466350
oct413264645
9155780524
1070085029
1136619a13
121b57a571
131169b441
149445297
156245e04
hex42d69a5

70085029 has 8 divisors (see below), whose sum is σ = 80403840. Its totient is φ = 59842896.

The previous prime is 70085009. The next prime is 70085047. The reversal of 70085029 is 92058007.

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 70085029 - 25 = 70084997 is a prime.

It is a super-2 number, since 2×700850292 = 9823822579861682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70085009) 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, 17194 + ... + 20875.

It is an arithmetic number, because the mean of its divisors is an integer number (10050480).

Almost surely, 270085029 is an apocalyptic number.

It is an amenable number.

70085029 is a deficient number, since it is larger than the sum of its proper divisors (10318811).

70085029 is a wasteful number, since it uses less digits than its factorization.

70085029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38339.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 70085029 is about 8371.6801778377. The cubic root of 70085029 is about 412.2953333022.

The spelling of 70085029 in words is "seventy million, eighty-five thousand, twenty-nine".

Divisors: 1 7 263 1841 38069 266483 10012147 70085029