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253175005 = 550635001
BaseRepresentation
bin11110001011100…
…10010011011101
3122122101121211001
433011302103131
51004303100010
641042230301
76162644356
oct1705622335
9578347731
10253175005
1111aa02146
1270955391
13405b48c5
14258a4d2d
151735ec3a
hexf1724dd

253175005 has 4 divisors (see below), whose sum is σ = 303810012. Its totient is φ = 202540000.

The previous prime is 253174993. The next prime is 253175009. The reversal of 253175005 is 500571352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82846404 + 170328601 = 9102^2 + 13051^2 .

It is not a de Polignac number, because 253175005 - 25 = 253174973 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 (253175009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25317496 + ... + 25317505.

It is an arithmetic number, because the mean of its divisors is an integer number (75952503).

Almost surely, 2253175005 is an apocalyptic number.

It is an amenable number.

253175005 is a deficient number, since it is larger than the sum of its proper divisors (50635007).

253175005 is an equidigital number, since it uses as much as digits as its factorization.

253175005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50635006.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 253175005 is about 15911.4740046295. The cubic root of 253175005 is about 632.6161513945.

The spelling of 253175005 in words is "two hundred fifty-three million, one hundred seventy-five thousand, five".

Divisors: 1 5 50635001 253175005