Search a number
-
+
26450489 = 1319173619
BaseRepresentation
bin110010011100…
…1101000111001
31211202211020202
41210321220321
523232403424
62342531545
7440553062
oct144715071
954684222
1026450489
1113a2670a
128a36bb5
1356314a0
143727569
1524c72ae
hex1939a39

26450489 has 16 divisors (see below), whose sum is σ = 30206400. Its totient is φ = 22959936.

The previous prime is 26450477. The next prime is 26450491. The reversal of 26450489 is 98405462.

It is a cyclic number.

It is not a de Polignac number, because 26450489 - 212 = 26446393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26450429) 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 in 15 ways as a sum of consecutive naturals, for example, 42422 + ... + 43040.

It is an arithmetic number, because the mean of its divisors is an integer number (1887900).

Almost surely, 226450489 is an apocalyptic number.

It is an amenable number.

26450489 is a deficient number, since it is larger than the sum of its proper divisors (3755911).

26450489 is a wasteful number, since it uses less digits than its factorization.

26450489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 26450489 is about 5143.0038887794. The cubic root of 26450489 is about 297.9508086604.

The spelling of 26450489 in words is "twenty-six million, four hundred fifty thousand, four hundred eighty-nine".

Divisors: 1 13 19 173 247 619 2249 3287 8047 11761 42731 107087 152893 1392131 2034653 26450489