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253262433 = 384420811
BaseRepresentation
bin11110001100001…
…11101001100001
3122122120001202010
433012013221201
51004313344213
641044143133
76163460304
oct1706075141
9578501663
10253262433
1111aa618a6
1270997aa9
1340615638
14258c8b3b
151737aac3
hexf187a61

253262433 has 4 divisors (see below), whose sum is σ = 337683248. Its totient is φ = 168841620.

The previous prime is 253262411. The next prime is 253262437. The reversal of 253262433 is 334262352.

253262433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 253262433 - 216 = 253196897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253262433.

It is not an unprimeable number, because it can be changed into a prime (253262437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42210403 + ... + 42210408.

It is an arithmetic number, because the mean of its divisors is an integer number (84420812).

Almost surely, 2253262433 is an apocalyptic number.

It is an amenable number.

253262433 is a deficient number, since it is larger than the sum of its proper divisors (84420815).

253262433 is an equidigital number, since it uses as much as digits as its factorization.

253262433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84420814.

The product of its digits is 25920, while the sum is 30.

The square root of 253262433 is about 15914.2210930978. The cubic root of 253262433 is about 632.6889626891.

The spelling of 253262433 in words is "two hundred fifty-three million, two hundred sixty-two thousand, four hundred thirty-three".

Divisors: 1 3 84420811 253262433