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200525 = 5213617
BaseRepresentation
bin110000111101001101
3101012001212
4300331031
522404100
64144205
71463423
oct607515
9335055
10200525
11127726
1298065
1370370
1453113
153e635
hex30f4d

200525 has 12 divisors (see below), whose sum is σ = 268212. Its totient is φ = 147840.

The previous prime is 200513. The next prime is 200569. The reversal of 200525 is 525002.

200525 = 752 + 762 + ... + 1002.

It can be written as a sum of positive squares in 6 ways, for example, as 72361 + 128164 = 269^2 + 358^2 .

It is not a de Polignac number, because 200525 - 26 = 200461 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17 + ... + 633.

It is an arithmetic number, because the mean of its divisors is an integer number (22351).

2200525 is an apocalyptic number.

200525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

200525 is a deficient number, since it is larger than the sum of its proper divisors (67687).

200525 is a wasteful number, since it uses less digits than its factorization.

200525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 200525 is about 447.8001786511. The cubic root of 200525 is about 58.5314803658.

Adding to 200525 its reverse (525002), we get a palindrome (725527).

The spelling of 200525 in words is "two hundred thousand, five hundred twenty-five".

Divisors: 1 5 13 25 65 325 617 3085 8021 15425 40105 200525