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201112025 = 5211536977
BaseRepresentation
bin10111111110010…
…11100111011001
3112000102112211112
423333023213121
5402441041100
631542310105
74661265302
oct1377134731
9460375745
10201112025
11a3582494
1257428335
13328864ca
141c9d17a9
15129c8b35
hexbfcb9d9

201112025 has 12 divisors (see below), whose sum is σ = 249630972. Its totient is φ = 160727040.

The previous prime is 201112019. The next prime is 201112031. The reversal of 201112025 is 520211102.

It is an interprime number because it is at equal distance from previous prime (201112019) and next prime (201112031).

It can be written as a sum of positive squares in 6 ways, for example, as 4439449 + 196672576 = 2107^2 + 14024^2 .

It is not a de Polignac number, because 201112025 - 28 = 201111769 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 (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25337 + ... + 32313.

It is an arithmetic number, because the mean of its divisors is an integer number (20802581).

Almost surely, 2201112025 is an apocalyptic number.

201112025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201112025 is a deficient number, since it is larger than the sum of its proper divisors (48518947).

201112025 is a wasteful number, since it uses less digits than its factorization.

201112025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8140 (or 8135 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 201112025 is about 14181.3971455566. The cubic root of 201112025 is about 585.8854053003.

Adding to 201112025 its reverse (520211102), we get a palindrome (721323127).

The spelling of 201112025 in words is "two hundred one million, one hundred twelve thousand, twenty-five".

Divisors: 1 5 25 1153 5765 6977 28825 34885 174425 8044481 40222405 201112025