Base | Representation |
---|---|
bin | 110101001001101000… |
… | …110001100001011101 |
3 | 12110022022021101122220 |
4 | 311021220301201131 |
5 | 1413334410001341 |
6 | 42115000055553 |
7 | 4060150666203 |
oct | 651150614135 |
9 | 173268241586 |
10 | 57070000221 |
11 | 22226588943 |
12 | b0887645b9 |
13 | 54c6714600 |
14 | 2a956ad073 |
15 | 17403d9a66 |
hex | d49a3185d |
57070000221 has 24 divisors (see below), whose sum is σ = 83951621856. Its totient is φ = 34457342400.
The previous prime is 57070000187. The next prime is 57070000241. The reversal of 57070000221 is 12200007075.
It is not a de Polignac number, because 57070000221 - 29 = 57069999709 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 57070000191 and 57070000200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57070000241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1035055 + ... + 1088796.
It is an arithmetic number, because the mean of its divisors is an integer number (3497984244).
Almost surely, 257070000221 is an apocalyptic number.
It is an amenable number.
57070000221 is a deficient number, since it is larger than the sum of its proper divisors (26881621635).
57070000221 is a wasteful number, since it uses less digits than its factorization.
57070000221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2123933 (or 2123920 counting only the distinct ones).
The product of its (nonzero) digits is 980, while the sum is 24.
Adding to 57070000221 its reverse (12200007075), we get a palindrome (69270007296).
The spelling of 57070000221 in words is "fifty-seven billion, seventy million, two hundred twenty-one", and thus it is an aban number.
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