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26481025 = 521497109
BaseRepresentation
bin110010100000…
…1000110000001
31211211101010201
41211001012001
523234343100
62343325201
7441041104
oct145010601
954741121
1026481025
1113a4764a
128a50801
13564235c
14373473b
1524d136a
hex1941181

26481025 has 12 divisors (see below), whose sum is σ = 33061500. Its totient is φ = 21039680.

The previous prime is 26481017. The next prime is 26481101. The reversal of 26481025 is 52018462.

It can be written as a sum of positive squares in 6 ways, for example, as 7436529 + 19044496 = 2727^2 + 4364^2 .

It is not a de Polignac number, because 26481025 - 23 = 26481017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26480984 and 26481002.

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, 171 + ... + 7279.

It is an arithmetic number, because the mean of its divisors is an integer number (2755125).

Almost surely, 226481025 is an apocalyptic number.

26481025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26481025 is a deficient number, since it is larger than the sum of its proper divisors (6580475).

26481025 is a wasteful number, since it uses less digits than its factorization.

26481025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7268 (or 7263 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 26481025 is about 5145.9717255344. The cubic root of 26481025 is about 298.0654218781.

Adding to 26481025 its reverse (52018462), we get a palindrome (78499487).

The spelling of 26481025 in words is "twenty-six million, four hundred eighty-one thousand, twenty-five".

Divisors: 1 5 25 149 745 3725 7109 35545 177725 1059241 5296205 26481025