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253672313 = 2311029231
BaseRepresentation
bin11110001111010…
…11101101111001
3122200022212222212
433013223231321
51004420003223
641101024505
76200115266
oct1707535571
9580285885
10253672313
11120211844
1270b55135
134072a07b
142599426d
151740c278
hexf1ebb79

253672313 has 4 divisors (see below), whose sum is σ = 264701568. Its totient is φ = 242643060.

The previous prime is 253672303. The next prime is 253672373. The reversal of 253672313 is 313276352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 253672313 - 28 = 253672057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 253672313.

It is not an unprimeable number, because it can be changed into a prime (253672303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5514593 + ... + 5514638.

It is an arithmetic number, because the mean of its divisors is an integer number (66175392).

Almost surely, 2253672313 is an apocalyptic number.

253672313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

253672313 is a deficient number, since it is larger than the sum of its proper divisors (11029255).

253672313 is a wasteful number, since it uses less digits than its factorization.

253672313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11029254.

The product of its digits is 22680, while the sum is 32.

The square root of 253672313 is about 15927.0936771277. The cubic root of 253672313 is about 633.0300933976.

The spelling of 253672313 in words is "two hundred fifty-three million, six hundred seventy-two thousand, three hundred thirteen".

Divisors: 1 23 11029231 253672313