Search a number
-
+
548848381 is a prime number
BaseRepresentation
bin100000101101101…
…100001011111101
31102020202101102211
4200231230023331
52111001122011
6130243420421
716413064024
oct4055541375
91366671384
10548848381
112618a0a04
12133984711
1389929273
1452c6d8bb
15332b6b21
hex20b6c2fd

548848381 has 2 divisors, whose sum is σ = 548848382. Its totient is φ = 548848380.

The previous prime is 548848369. The next prime is 548848387. The reversal of 548848381 is 183848845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 534025881 + 14822500 = 23109^2 + 3850^2 .

It is a cyclic number.

It is not a de Polignac number, because 548848381 - 215 = 548815613 is a prime.

It is a super-2 number, since 2×5488483812 = 602469090652642322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (548848387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274424190 + 274424191.

It is an arithmetic number, because the mean of its divisors is an integer number (274424191).

Almost surely, 2548848381 is an apocalyptic number.

It is an amenable number.

548848381 is a deficient number, since it is larger than the sum of its proper divisors (1).

548848381 is an equidigital number, since it uses as much as digits as its factorization.

548848381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 983040, while the sum is 49.

The square root of 548848381 is about 23427.5133336852. The cubic root of 548848381 is about 818.7490249896.

The spelling of 548848381 in words is "five hundred forty-eight million, eight hundred forty-eight thousand, three hundred eighty-one".