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253245546 = 23214069197
BaseRepresentation
bin11110001100000…
…11100001101010
3122122112012120200
433012003201222
51004312324141
641043533030
76163360131
oct1706034152
9578465520
10253245546
1111aa50144
127098a176
134060aa48
14258c2918
1517375ab6
hexf18386a

253245546 has 12 divisors (see below), whose sum is σ = 548698722. Its totient is φ = 84415176.

The previous prime is 253245527. The next prime is 253245589. The reversal of 253245546 is 645542352.

It can be written as a sum of positive squares in only one way, i.e., 204175521 + 49070025 = 14289^2 + 7005^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 253245546.

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 5 ways as a sum of consecutive naturals, for example, 7034581 + ... + 7034616.

Almost surely, 2253245546 is an apocalyptic number.

253245546 is an abundant number, since it is smaller than the sum of its proper divisors (295453176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253245546 is a wasteful number, since it uses less digits than its factorization.

253245546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14069205 (or 14069202 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The square root of 253245546 is about 15913.6905210576. The cubic root of 253245546 is about 632.6749002588.

Adding to 253245546 its reverse (645542352), we get a palindrome (898787898).

The spelling of 253245546 in words is "two hundred fifty-three million, two hundred forty-five thousand, five hundred forty-six".

Divisors: 1 2 3 6 9 18 14069197 28138394 42207591 84415182 126622773 253245546