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200125125 = 3253177889
BaseRepresentation
bin10111110110110…
…10101011000101
3111221120102001200
423323122223011
5402213001000
631505213113
74650015114
oct1373325305
9457512050
10200125125
11a2a68a72
1257031199
13325cc245
141c815c7b
1512881500
hexbedaac5

200125125 has 24 divisors (see below), whose sum is σ = 360760920. Its totient is φ = 106732800.

The previous prime is 200125117. The next prime is 200125127. The reversal of 200125125 is 521521002.

It can be written as a sum of positive squares in 4 ways, for example, as 14130081 + 185995044 = 3759^2 + 13638^2 .

It is not a de Polignac number, because 200125125 - 23 = 200125117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 200125098 and 200125107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200125127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87820 + ... + 90069.

It is an arithmetic number, because the mean of its divisors is an integer number (15031705).

Almost surely, 2200125125 is an apocalyptic number.

200125125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

200125125 is a deficient number, since it is larger than the sum of its proper divisors (160635795).

200125125 is a wasteful number, since it uses less digits than its factorization.

200125125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177910 (or 177897 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 200125125 is about 14146.5587688314. The cubic root of 200125125 is about 584.9254781250.

Adding to 200125125 its reverse (521521002), we get a palindrome (721646127).

The spelling of 200125125 in words is "two hundred million, one hundred twenty-five thousand, one hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 125 225 375 1125 177889 533667 889445 1601001 2668335 4447225 8005005 13341675 22236125 40025025 66708375 200125125