Base | Representation |
---|---|
bin | 1000010111001… |
… | …10000010010101 |
3 | 11212222220022011 |
4 | 10023212002111 |
5 | 120424220440 |
6 | 10543304221 |
7 | 1511151556 |
oct | 413460225 |
9 | 155886264 |
10 | 70148245 |
11 | 36662462 |
12 | 1b5ab071 |
13 | 116c114b |
14 | 946032d |
15 | 62599ea |
hex | 42e6095 |
70148245 has 16 divisors (see below), whose sum is σ = 87381360. Its totient is φ = 53996544.
The previous prime is 70148233. The next prime is 70148251. The reversal of 70148245 is 54284107.
It can be written as a sum of positive squares in 8 ways, for example, as 7279204 + 62869041 = 2698^2 + 7929^2 .
It is a cyclic number.
It is not a de Polignac number, because 70148245 - 223 = 61759637 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, 53437 + ... + 54733.
It is an arithmetic number, because the mean of its divisors is an integer number (5461335).
Almost surely, 270148245 is an apocalyptic number.
It is an amenable number.
70148245 is a deficient number, since it is larger than the sum of its proper divisors (17233115).
70148245 is a wasteful number, since it uses less digits than its factorization.
70148245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1704.
The product of its (nonzero) digits is 8960, while the sum is 31.
The square root of 70148245 is about 8375.4549130182. The cubic root of 70148245 is about 412.4192581484.
The spelling of 70148245 in words is "seventy million, one hundred forty-eight thousand, two hundred forty-five".
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