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26823025 = 521763113
BaseRepresentation
bin110011001010…
…0100101110001
31212110202021101
41212110211301
523331314100
62354524401
7443664145
oct146244561
955422241
1026823025
1114160599
128b96701
135731c18
1437c3225
15254c86a
hex1994971

26823025 has 12 divisors (see below), whose sum is σ = 35217612. Its totient is φ = 20195840.

The previous prime is 26823007. The next prime is 26823031. The reversal of 26823025 is 52032862.

It can be written as a sum of positive squares in 6 ways, for example, as 1411344 + 25411681 = 1188^2 + 5041^2 .

It is not a de Polignac number, because 26823025 - 211 = 26820977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26822984 and 26823002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31132 + ... + 31981.

It is an arithmetic number, because the mean of its divisors is an integer number (2934801).

Almost surely, 226823025 is an apocalyptic number.

26823025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26823025 is a deficient number, since it is larger than the sum of its proper divisors (8394587).

26823025 is a wasteful number, since it uses less digits than its factorization.

26823025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63140 (or 63135 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 26823025 is about 5179.0949981633. The cubic root of 26823025 is about 299.3430996935.

Adding to 26823025 its reverse (52032862), we get a palindrome (78855887).

The spelling of 26823025 in words is "twenty-six million, eight hundred twenty-three thousand, twenty-five".

Divisors: 1 5 17 25 85 425 63113 315565 1072921 1577825 5364605 26823025