Base | Representation |
---|---|
bin | 1000011100010… |
… | …00010101001101 |
3 | 11221020200011220 |
4 | 10032020111031 |
5 | 121112004010 |
6 | 11005433553 |
7 | 1516620624 |
oct | 416102515 |
9 | 157220156 |
10 | 70813005 |
11 | 36a7694a |
12 | 1b86b8b9 |
13 | 118948b3 |
14 | 95946bb |
15 | 633b970 |
hex | 438854d |
70813005 has 16 divisors (see below), whose sum is σ = 116363904. Its totient is φ = 36745920.
The previous prime is 70812953. The next prime is 70813031. The reversal of 70813005 is 50031807.
It is not a de Polignac number, because 70813005 - 218 = 70550861 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63241 + ... + 64350.
It is an arithmetic number, because the mean of its divisors is an integer number (7272744).
Almost surely, 270813005 is an apocalyptic number.
It is an amenable number.
70813005 is a deficient number, since it is larger than the sum of its proper divisors (45550899).
70813005 is a wasteful number, since it uses less digits than its factorization.
70813005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 127636.
The product of its (nonzero) digits is 840, while the sum is 24.
The square root of 70813005 is about 8415.0463456834. The cubic root of 70813005 is about 413.7179284688.
The spelling of 70813005 in words is "seventy million, eight hundred thirteen thousand, five".
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