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253216601 = 1171349929
BaseRepresentation
bin11110001011111…
…00011101011001
3122122110201212122
433011330131121
51004310412401
641043151025
76163206551
oct1705743531
9578421778
10253216601
1111aa30420
1270975475
13405ca811
14258b6161
151736c21b
hexf17c759

253216601 has 16 divisors (see below), whose sum is σ = 281232000. Its totient is φ = 226060800.

The previous prime is 253216583. The next prime is 253216609. The reversal of 253216601 is 106612352.

It is a cyclic number.

It is not a de Polignac number, because 253216601 - 214 = 253200217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (253216609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272105 + ... + 273033.

It is an arithmetic number, because the mean of its divisors is an integer number (17577000).

Almost surely, 2253216601 is an apocalyptic number.

It is an amenable number.

253216601 is a deficient number, since it is larger than the sum of its proper divisors (28015399).

253216601 is a wasteful number, since it uses less digits than its factorization.

253216601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 253216601 is about 15912.7810580049. The cubic root of 253216601 is about 632.6507952310.

Adding to 253216601 its reverse (106612352), we get a palindrome (359828953).

The spelling of 253216601 in words is "two hundred fifty-three million, two hundred sixteen thousand, six hundred one".

Divisors: 1 11 71 349 781 929 3839 10219 24779 65959 272569 324221 725549 3566431 23019691 253216601