Base | Representation |
---|---|
bin | 1000010110100… |
… | …10100011011101 |
3 | 11212211211211121 |
4 | 10023102203131 |
5 | 120414142240 |
6 | 10541450541 |
7 | 1510400116 |
oct | 413224335 |
9 | 155754747 |
10 | 70068445 |
11 | 36608507 |
12 | 1b570a51 |
13 | 11693a25 |
14 | 943d20d |
15 | 624104a |
hex | 42d28dd |
70068445 has 4 divisors (see below), whose sum is σ = 84082140. Its totient is φ = 56054752.
The previous prime is 70068433. The next prime is 70068451. The reversal of 70068445 is 54486007.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54486007 = 41 ⋅1328927.
It can be written as a sum of positive squares in 2 ways, for example, as 51638596 + 18429849 = 7186^2 + 4293^2 .
It is a cyclic number.
It is not a de Polignac number, because 70068445 - 211 = 70066397 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 70068445.
It is a congruent number.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 7006840 + ... + 7006849.
It is an arithmetic number, because the mean of its divisors is an integer number (21020535).
Almost surely, 270068445 is an apocalyptic number.
It is an amenable number.
70068445 is a deficient number, since it is larger than the sum of its proper divisors (14013695).
70068445 is a wasteful number, since it uses less digits than its factorization.
70068445 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14013694.
The product of its (nonzero) digits is 26880, while the sum is 34.
The square root of 70068445 is about 8370.6896370610. The cubic root of 70068445 is about 412.2628106875.
It can be divided in two parts, 7006 and 8445, that added together give a palindrome (15451).
The spelling of 70068445 in words is "seventy million, sixty-eight thousand, four hundred forty-five".
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