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201925 = 5241197
BaseRepresentation
bin110001010011000101
3101020222201
4301103011
522430200
64154501
71500463
oct612305
9336881
10201925
11128789
1298a31
1370ba9
1453833
153ec6a
hex314c5

201925 has 12 divisors (see below), whose sum is σ = 257796. Its totient is φ = 156800.

The previous prime is 201923. The next prime is 201937. The reversal of 201925 is 529102.

It can be written as a sum of positive squares in 6 ways, for example, as 2116 + 199809 = 46^2 + 447^2 .

It is not a de Polignac number, because 201925 - 21 = 201923 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 927 + ... + 1123.

It is an arithmetic number, because the mean of its divisors is an integer number (21483).

2201925 is an apocalyptic number.

201925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201925 is a deficient number, since it is larger than the sum of its proper divisors (55871).

201925 is a wasteful number, since it uses less digits than its factorization.

201925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 201925 is about 449.3606569338. The cubic root of 201925 is about 58.6673804723.

The spelling of 201925 in words is "two hundred one thousand, nine hundred twenty-five".

Divisors: 1 5 25 41 197 205 985 1025 4925 8077 40385 201925