Base | Representation |
---|---|
bin | 11101010001000001… |
… | …10010101000000101 |
3 | 1111120000000212022001 |
4 | 32220200302220011 |
5 | 224134242221044 |
6 | 11115032105301 |
7 | 1064234251456 |
oct | 165040625005 |
9 | 44500025261 |
10 | 15712070149 |
11 | 6733065946 |
12 | 3065b35231 |
13 | 1635223339 |
14 | a90a2112d |
15 | 61e5bd2d4 |
hex | 3a8832a05 |
15712070149 has 2 divisors, whose sum is σ = 15712070150. Its totient is φ = 15712070148.
The previous prime is 15712070147. The next prime is 15712070189. The reversal of 15712070149 is 94107021751.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 13702341249 + 2009728900 = 117057^2 + 44830^2 .
It is a cyclic number.
It is not a de Polignac number, because 15712070149 - 21 = 15712070147 is a prime.
Together with 15712070147, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (15712070141) 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 as a sum of consecutive naturals, namely, 7856035074 + 7856035075.
It is an arithmetic number, because the mean of its divisors is an integer number (7856035075).
Almost surely, 215712070149 is an apocalyptic number.
It is an amenable number.
15712070149 is a deficient number, since it is larger than the sum of its proper divisors (1).
15712070149 is an equidigital number, since it uses as much as digits as its factorization.
15712070149 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 17640, while the sum is 37.
The spelling of 15712070149 in words is "fifteen billion, seven hundred twelve million, seventy thousand, one hundred forty-nine".
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