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26252020 = 2251312601
BaseRepresentation
bin110010000100…
…1001011110100
31211101202000001
41210021023310
523210031040
62334401044
7436065334
oct144111364
954352001
1026252020
1113900593
128960184
135592052
1436b50c4
15248859a
hex19092f4

26252020 has 12 divisors (see below), whose sum is σ = 55129284. Its totient is φ = 10500800.

The previous prime is 26252011. The next prime is 26252027. The reversal of 26252020 is 2025262.

It can be written as a sum of positive squares in 2 ways, for example, as 5513104 + 20738916 = 2348^2 + 4554^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26252027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656281 + ... + 656320.

It is an arithmetic number, because the mean of its divisors is an integer number (4594107).

Almost surely, 226252020 is an apocalyptic number.

26252020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26252020 is an abundant number, since it is smaller than the sum of its proper divisors (28877264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26252020 is a wasteful number, since it uses less digits than its factorization.

26252020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312610 (or 1312608 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 26252020 is about 5123.6725110022. The cubic root of 26252020 is about 297.2037207584.

Adding to 26252020 its reverse (2025262), we get a palindrome (28277282).

The spelling of 26252020 in words is "twenty-six million, two hundred fifty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 1312601 2625202 5250404 6563005 13126010 26252020