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11311025 = 521141131
BaseRepresentation
bin101011001001…
…011110110001
3210021122210212
4223021132301
510343423100
61042233505
7165066515
oct53113661
923248725
1011311025
116426160
123955895
13246051b
141706145
15ed6635
hexac97b1

11311025 has 12 divisors (see below), whose sum is σ = 15301104. Its totient is φ = 8226000.

The previous prime is 11311019. The next prime is 11311031. The reversal of 11311025 is 52011311.

It is an interprime number because it is at equal distance from previous prime (11311019) and next prime (11311031).

It is not a de Polignac number, because 11311025 - 220 = 10262449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20291 + ... + 20840.

It is an arithmetic number, because the mean of its divisors is an integer number (1275092).

Almost surely, 211311025 is an apocalyptic number.

It is an amenable number.

11311025 is a deficient number, since it is larger than the sum of its proper divisors (3990079).

11311025 is a wasteful number, since it uses less digits than its factorization.

11311025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41152 (or 41147 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 11311025 is about 3363.1867328473. The cubic root of 11311025 is about 224.4746591371.

Adding to 11311025 its reverse (52011311), we get a palindrome (63322336).

The spelling of 11311025 in words is "eleven million, three hundred eleven thousand, twenty-five".

Divisors: 1 5 11 25 55 275 41131 205655 452441 1028275 2262205 11311025