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253426093 = 673782479
BaseRepresentation
bin11110001101011…
…11100110101101
3122122212101020121
433012233212231
51004334113333
641051444541
76165041404
oct1706574655
9578771217
10253426093
11120063858
1270a56751
1340671c8b
142592c63b
15173ae32d
hexf1af9ad

253426093 has 4 divisors (see below), whose sum is σ = 257208640. Its totient is φ = 249643548.

The previous prime is 253426091. The next prime is 253426111. The reversal of 253426093 is 390624352.

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 253426093 - 21 = 253426091 is a prime.

It is a super-2 number, since 2×2534260932 = 128449569226489298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253426091) 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, 1891173 + ... + 1891306.

It is an arithmetic number, because the mean of its divisors is an integer number (64302160).

Almost surely, 2253426093 is an apocalyptic number.

It is an amenable number.

253426093 is a deficient number, since it is larger than the sum of its proper divisors (3782547).

253426093 is an equidigital number, since it uses as much as digits as its factorization.

253426093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782546.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 253426093 is about 15919.3622045608. The cubic root of 253426093 is about 632.8252160587.

The spelling of 253426093 in words is "two hundred fifty-three million, four hundred twenty-six thousand, ninety-three".

Divisors: 1 67 3782479 253426093