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253243023 = 3117674031
BaseRepresentation
bin11110001100000…
…10111010001111
3122122112002010020
433012002322033
51004312234043
641043513223
76163346565
oct1706027217
9578462106
10253243023
1111aa49260
1270988813
1340609857
14258c1a35
1517374e83
hexf182e8f

253243023 has 8 divisors (see below), whose sum is σ = 368353536. Its totient is φ = 153480600.

The previous prime is 253243021. The next prime is 253243027. The reversal of 253243023 is 320342352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253243023 - 21 = 253243021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253242984 and 253243002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253243021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3836983 + ... + 3837048.

It is an arithmetic number, because the mean of its divisors is an integer number (46044192).

Almost surely, 2253243023 is an apocalyptic number.

253243023 is a deficient number, since it is larger than the sum of its proper divisors (115110513).

253243023 is a wasteful number, since it uses less digits than its factorization.

253243023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7674045.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 253243023 is about 15913.6112494933. The cubic root of 253243023 is about 632.6727992095.

Adding to 253243023 its reverse (320342352), we get a palindrome (573585375).

The spelling of 253243023 in words is "two hundred fifty-three million, two hundred forty-three thousand, twenty-three".

Divisors: 1 3 11 33 7674031 23022093 84414341 253243023