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253801323 = 339400049
BaseRepresentation
bin11110010000010…
…11001101101011
3122200120102222000
433020023031223
51004433120243
641103502043
76201163356
oct1710131553
9580512860
10253801323
1112029a766
1270bb7923
13407739c9
14259c929d
15174355d3
hexf20b36b

253801323 has 8 divisors (see below), whose sum is σ = 376002000. Its totient is φ = 169200864.

The previous prime is 253801307. The next prime is 253801349. The reversal of 253801323 is 323108352.

It is not a de Polignac number, because 253801323 - 24 = 253801307 is a prime.

It is a super-2 number, since 2×2538013232 = 128830223113100658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 9400049 = 253801323 / (2 + 5 + 3 + 8 + 0 + 1 + 3 + 2 + 3).

It is not an unprimeable number, because it can be changed into a prime (253808323) 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, 4699998 + ... + 4700051.

It is an arithmetic number, because the mean of its divisors is an integer number (47000250).

Almost surely, 2253801323 is an apocalyptic number.

253801323 is a deficient number, since it is larger than the sum of its proper divisors (122200677).

253801323 is an equidigital number, since it uses as much as digits as its factorization.

253801323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9400058 (or 9400052 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 253801323 is about 15931.1431793202. The cubic root of 253801323 is about 633.1373884756.

253801323 divided by its sum of digits (27) gives a palindrome (9400049).

Adding to 253801323 its reverse (323108352), we get a palindrome (576909675).

The spelling of 253801323 in words is "two hundred fifty-three million, eight hundred one thousand, three hundred twenty-three".

Divisors: 1 3 9 27 9400049 28200147 84600441 253801323