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201441025 = 5243187387
BaseRepresentation
bin11000000000110…
…11111100000001
3112001001021010201
430000123330001
5403032103100
631553325201
74664135422
oct1400337401
9461037121
10201441025
11a3787695
1257566801
1332970196
141ca79649
1512a4136a
hexc01bf01

201441025 has 12 divisors (see below), whose sum is σ = 255597232. Its totient is φ = 157404240.

The previous prime is 201441017. The next prime is 201441043. The reversal of 201441025 is 520144102.

It is not a de Polignac number, because 201441025 - 23 = 201441017 is a prime.

It is a super-4 number, since 4×2014410254 (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201440993 and 201441011.

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, 92619 + ... + 94768.

Almost surely, 2201441025 is an apocalyptic number.

201441025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201441025 is a deficient number, since it is larger than the sum of its proper divisors (54156207).

201441025 is a wasteful number, since it uses less digits than its factorization.

201441025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187440 (or 187435 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 201441025 is about 14192.9921087838. The cubic root of 201441025 is about 586.2047153689.

Adding to 201441025 its reverse (520144102), we get a palindrome (721585127).

The spelling of 201441025 in words is "two hundred one million, four hundred forty-one thousand, twenty-five".

Divisors: 1 5 25 43 215 1075 187387 936935 4684675 8057641 40288205 201441025