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20134025 = 52899049
BaseRepresentation
bin100110011001…
…1100010001001
31101212220200122
41030303202021
520123242100
61555313025
7333064532
oct114634211
941786618
1020134025
1110401a9a
1268ab775
13422c432
142961689
151b7a985
hex1333889

20134025 has 12 divisors (see below), whose sum is σ = 25249500. Its totient is φ = 15924480.

The previous prime is 20134003. The next prime is 20134043. The reversal of 20134025 is 52043102.

It can be written as a sum of positive squares in 6 ways, for example, as 322624 + 19811401 = 568^2 + 4451^2 .

It is not a de Polignac number, because 20134025 - 26 = 20133961 is a prime.

It is a Curzon number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 20133994 and 20134012.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2300 + ... + 6749.

It is an arithmetic number, because the mean of its divisors is an integer number (2104125).

Almost surely, 220134025 is an apocalyptic number.

20134025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20134025 is a deficient number, since it is larger than the sum of its proper divisors (5115475).

20134025 is an equidigital number, since it uses as much as digits as its factorization.

20134025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9148 (or 9143 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 20134025 is about 4487.0953856587. The cubic root of 20134025 is about 272.0467453181.

Adding to 20134025 its reverse (52043102), we get a palindrome (72177127).

It can be divided in two parts, 2013 and 4025, that multiplied together give a triangular number (8102325 = T4025).

The spelling of 20134025 in words is "twenty million, one hundred thirty-four thousand, twenty-five".

Divisors: 1 5 25 89 445 2225 9049 45245 226225 805361 4026805 20134025