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253488023 = 318177033
BaseRepresentation
bin11110001101111…
…10101110010111
3122122222112012022
433012332232113
51004343104043
641053043355
76165420065
oct1706765627
9578875168
10253488023
111200a6338
1270a8655b
1340694219
1425947035
15173c2868
hexf1beb97

253488023 has 4 divisors (see below), whose sum is σ = 261665088. Its totient is φ = 245310960.

The previous prime is 253488019. The next prime is 253488031. The reversal of 253488023 is 320884352.

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 253488023 - 22 = 253488019 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 (253487023) 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, 4088486 + ... + 4088547.

It is an arithmetic number, because the mean of its divisors is an integer number (65416272).

Almost surely, 2253488023 is an apocalyptic number.

253488023 is a deficient number, since it is larger than the sum of its proper divisors (8177065).

253488023 is an equidigital number, since it uses as much as digits as its factorization.

253488023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8177064.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 253488023 is about 15921.3072013576. The cubic root of 253488023 is about 632.8767599141.

The spelling of 253488023 in words is "two hundred fifty-three million, four hundred eighty-eight thousand, twenty-three".

Divisors: 1 31 8177033 253488023