Base | Representation |
---|---|
bin | 101111110001… |
… | …1010110100001 |
3 | 1202010121001112 |
4 | 1133203112201 |
5 | 22403022411 |
6 | 2252513105 |
7 | 422623433 |
oct | 137432641 |
9 | 52117045 |
10 | 25048481 |
11 | 13159327 |
12 | 847b795 |
13 | 52602b3 |
14 | 3480653 |
15 | 22ebb8b |
hex | 17e35a1 |
25048481 has 2 divisors, whose sum is σ = 25048482. Its totient is φ = 25048480.
The previous prime is 25048477. The next prime is 25048511. The reversal of 25048481 is 18484052.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 15928081 + 9120400 = 3991^2 + 3020^2 .
It is a cyclic number.
It is not a de Polignac number, because 25048481 - 22 = 25048477 is a prime.
It is a super-2 number, since 2×250484812 = 1254852800814722, which contains 22 as substring.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (25048411) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12524240 + 12524241.
It is an arithmetic number, because the mean of its divisors is an integer number (12524241).
Almost surely, 225048481 is an apocalyptic number.
It is an amenable number.
25048481 is a deficient number, since it is larger than the sum of its proper divisors (1).
25048481 is an equidigital number, since it uses as much as digits as its factorization.
25048481 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 10240, while the sum is 32.
The square root of 25048481 is about 5004.8457518689. The cubic root of 25048481 is about 292.5906641779.
The spelling of 25048481 in words is "twenty-five million, forty-eight thousand, four hundred eighty-one".
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