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203125053 = 375789443
BaseRepresentation
bin11000001101101…
…11000100111101
3112011012211012010
430012313010331
5404000000203
632053401433
75014351215
oct1406670475
9464184163
10203125053
11a472794a
1258039279
133310c851
141cd97245
1512c75303
hexc1b713d

203125053 has 8 divisors (see below), whose sum is σ = 271194208. Its totient is φ = 135236304.

The previous prime is 203125033. The next prime is 203125057. The reversal of 203125053 is 350521302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203125053 - 28 = 203124797 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 (203125057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42451 + ... + 46992.

It is an arithmetic number, because the mean of its divisors is an integer number (33899276).

Almost surely, 2203125053 is an apocalyptic number.

It is an amenable number.

203125053 is a deficient number, since it is larger than the sum of its proper divisors (68069155).

203125053 is an equidigital number, since it uses as much as digits as its factorization.

203125053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90203.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 203125053 is about 14252.1946731021. The cubic root of 203125053 is about 587.8337230566.

Adding to 203125053 its reverse (350521302), we get a palindrome (553646355).

The spelling of 203125053 in words is "two hundred three million, one hundred twenty-five thousand, fifty-three".

Divisors: 1 3 757 2271 89443 268329 67708351 203125053