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203050525 = 528122021
BaseRepresentation
bin11000001101001…
…00111000011101
3112011002000221211
430012210320131
5403440104100
632052024421
75013621016
oct1406447035
9464060854
10203050525
11a4686957
1258002111
13330b4952
141cd7800d
1512c5d1ba
hexc1a4e1d

203050525 has 6 divisors (see below), whose sum is σ = 251782682. Its totient is φ = 162440400.

The previous prime is 203050493. The next prime is 203050543. The reversal of 203050525 is 525050302.

It can be written as a sum of positive squares in 3 ways, for example, as 1779556 + 201270969 = 1334^2 + 14187^2 .

It is not a de Polignac number, because 203050525 - 25 = 203050493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203050496 and 203050505.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 4060986 + ... + 4061035.

Almost surely, 2203050525 is an apocalyptic number.

203050525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

203050525 is a deficient number, since it is larger than the sum of its proper divisors (48732157).

203050525 is an equidigital number, since it uses as much as digits as its factorization.

203050525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8122031 (or 8122026 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 203050525 is about 14249.5798183666. The cubic root of 203050525 is about 587.7618208299.

The spelling of 203050525 in words is "two hundred three million, fifty thousand, five hundred twenty-five".

Divisors: 1 5 25 8122021 40610105 203050525