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253064361 = 311363377
BaseRepresentation
bin11110001010101…
…11010010101001
3122122012000001010
433011113102221
51004241024421
641040014133
76162003654
oct1705272251
9578160033
10253064361
1111a937000
1270901349
1340576434
142587689b
151733c076
hexf1574a9

253064361 has 16 divisors (see below), whose sum is σ = 371141568. Its totient is φ = 153369920.

The previous prime is 253064321. The next prime is 253064369. The reversal of 253064361 is 163460352.

It is not a de Polignac number, because 253064361 - 26 = 253064297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253064369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27696 + ... + 35681.

It is an arithmetic number, because the mean of its divisors is an integer number (23196348).

Almost surely, 2253064361 is an apocalyptic number.

It is an amenable number.

253064361 is a deficient number, since it is larger than the sum of its proper divisors (118077207).

253064361 is an equidigital number, since it uses as much as digits as its factorization.

253064361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63413 (or 63391 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 253064361 is about 15907.9967626348. The cubic root of 253064361 is about 632.5239814474.

The spelling of 253064361 in words is "two hundred fifty-three million, sixty-four thousand, three hundred sixty-one".

Divisors: 1 3 11 33 121 363 1331 3993 63377 190131 697147 2091441 7668617 23005851 84354787 253064361