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253058387 = 475384221
BaseRepresentation
bin11110001010101…
…01110101010011
3122122011200211212
433011111311103
51004240332022
641035530335
76161650361
oct1705256523
9578150755
10253058387
1111a93256a
12708b99ab
13405737ba
1425874631
151733a3e2
hexf155d53

253058387 has 4 divisors (see below), whose sum is σ = 258442656. Its totient is φ = 247674120.

The previous prime is 253058371. The next prime is 253058459. The reversal of 253058387 is 783850352.

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

It is a cyclic number.

It is not a de Polignac number, because 253058387 - 24 = 253058371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253058327) 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, 2692064 + ... + 2692157.

It is an arithmetic number, because the mean of its divisors is an integer number (64610664).

Almost surely, 2253058387 is an apocalyptic number.

253058387 is a deficient number, since it is larger than the sum of its proper divisors (5384269).

253058387 is an equidigital number, since it uses as much as digits as its factorization.

253058387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5384268.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 253058387 is about 15907.8089943273. The cubic root of 253058387 is about 632.5190041523.

The spelling of 253058387 in words is "two hundred fifty-three million, fifty-eight thousand, three hundred eighty-seven".

Divisors: 1 47 5384221 253058387