Base | Representation |
---|---|
bin | 11101110101010… |
… | …00111101011101 |
3 | 122102220011210011 |
4 | 32322220331131 |
5 | 1003031100044 |
6 | 40455443221 |
7 | 6126055006 |
oct | 1672507535 |
9 | 572804704 |
10 | 250253149 |
11 | 119296993 |
12 | 6b986511 |
13 | 3cb009b3 |
14 | 253441ad |
15 | 16e84134 |
hex | eea8f5d |
250253149 has 2 divisors, whose sum is σ = 250253150. Its totient is φ = 250253148.
The previous prime is 250253147. The next prime is 250253183. The reversal of 250253149 is 941352052.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 241802500 + 8450649 = 15550^2 + 2907^2 .
It is a cyclic number.
It is not a de Polignac number, because 250253149 - 21 = 250253147 is a prime.
Together with 250253147, it forms a pair of twin primes.
It is a self number, because there is not a number n which added to its sum of digits gives 250253149.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (250253147) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125126574 + 125126575.
It is an arithmetic number, because the mean of its divisors is an integer number (125126575).
Almost surely, 2250253149 is an apocalyptic number.
It is an amenable number.
250253149 is a deficient number, since it is larger than the sum of its proper divisors (1).
250253149 is an equidigital number, since it uses as much as digits as its factorization.
250253149 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 10800, while the sum is 31.
The square root of 250253149 is about 15819.3915496140. The cubic root of 250253149 is about 630.1730850536.
The spelling of 250253149 in words is "two hundred fifty million, two hundred fifty-three thousand, one hundred forty-nine".
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