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253234545 = 3533615023
BaseRepresentation
bin11110001100000…
…00110101110001
3122122111122111020
433012000311301
51004312001140
641043410053
76163313064
oct1706006561
9578448436
10253234545
1111aa42953
1270983929
1340605a35
14258bc8db
15173726d0
hexf180d71

253234545 has 16 divisors (see below), whose sum is σ = 405376512. Its totient is φ = 134991360.

The previous prime is 253234511. The next prime is 253234559. The reversal of 253234545 is 545432352.

It is a happy number.

It is not a de Polignac number, because 253234545 - 27 = 253234417 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47904 + ... + 52926.

It is an arithmetic number, because the mean of its divisors is an integer number (25336032).

Almost surely, 2253234545 is an apocalyptic number.

It is an amenable number.

253234545 is a deficient number, since it is larger than the sum of its proper divisors (152141967).

253234545 is a wasteful number, since it uses less digits than its factorization.

253234545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8392.

The product of its digits is 72000, while the sum is 33.

The square root of 253234545 is about 15913.3448715221. The cubic root of 253234545 is about 632.6657389823.

Adding to 253234545 its reverse (545432352), we get a palindrome (798666897).

The spelling of 253234545 in words is "two hundred fifty-three million, two hundred thirty-four thousand, five hundred forty-five".

Divisors: 1 3 5 15 3361 5023 10083 15069 16805 25115 50415 75345 16882303 50646909 84411515 253234545