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26830449 = 329293209
BaseRepresentation
bin110011001011…
…0011001110001
31212111010110100
41212112121301
523332033244
62355023013
7444024612
oct146263161
955433410
1026830449
1114166128
128b9aa69
135735409
1437c5c09
15254eb69
hex1996671

26830449 has 12 divisors (see below), whose sum is σ = 38808900. Its totient is φ = 17862144.

The previous prime is 26830429. The next prime is 26830457. The reversal of 26830449 is 94403862.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6036849 + 20793600 = 2457^2 + 4560^2 .

It is not a de Polignac number, because 26830449 - 25 = 26830417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26830429) 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 11 ways as a sum of consecutive naturals, for example, 6757 + ... + 9965.

It is an arithmetic number, because the mean of its divisors is an integer number (3234075).

Almost surely, 226830449 is an apocalyptic number.

It is an amenable number.

26830449 is a deficient number, since it is larger than the sum of its proper divisors (11978451).

26830449 is a wasteful number, since it uses less digits than its factorization.

26830449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4144 (or 4141 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 26830449 is about 5179.8116761133. The cubic root of 26830449 is about 299.3707142545.

It can be divided in two parts, 2683044 and 9, that multiplied together give a square (24147396 = 49142).

The spelling of 26830449 in words is "twenty-six million, eight hundred thirty thousand, four hundred forty-nine".

Divisors: 1 3 9 929 2787 3209 8361 9627 28881 2981161 8943483 26830449