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253535345 = 577243867
BaseRepresentation
bin11110001110010…
…10010001110001
3122200001221002222
433013022101301
51004401112340
641054050425
76166005050
oct1707122161
9580057088
10253535345
11120128948
1270aa9a15
13406ac91b
142595a397
15173d18b5
hexf1ca471

253535345 has 8 divisors (see below), whose sum is σ = 347705664. Its totient is φ = 173852784.

The previous prime is 253535339. The next prime is 253535389. The reversal of 253535345 is 543535352.

253535345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253535345 - 26 = 253535281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 7243867 = 253535345 / (2 + 5 + 3 + 5 + 3 + 5 + 3 + 4 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3621899 + ... + 3621968.

It is an arithmetic number, because the mean of its divisors is an integer number (43463208).

Almost surely, 2253535345 is an apocalyptic number.

It is an amenable number.

253535345 is a deficient number, since it is larger than the sum of its proper divisors (94170319).

253535345 is an equidigital number, since it uses as much as digits as its factorization.

253535345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7243879.

The product of its digits is 135000, while the sum is 35.

The square root of 253535345 is about 15922.7932536977. The cubic root of 253535345 is about 632.9161399871.

The spelling of 253535345 in words is "two hundred fifty-three million, five hundred thirty-five thousand, three hundred forty-five".

Divisors: 1 5 7 35 7243867 36219335 50707069 253535345