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4405131253 = 6197710849
BaseRepresentation
bin1000001101001000…
…01111011111110101
3102101000000212001101
410012210033133311
533010203200003
62005041130101
7214106666155
oct40644173765
912330025041
104405131253
111960644346
12a2b329931
1355283b753
142db092765
151abaee11d
hex10690f7f5

4405131253 has 4 divisors (see below), whose sum is σ = 4405848300. Its totient is φ = 4404414208.

The previous prime is 4405131229. The next prime is 4405131301. The reversal of 4405131253 is 3521315044.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1912925169 + 2492206084 = 43737^2 + 49922^2 .

It is a cyclic number.

It is not a de Polignac number, because 4405131253 - 221 = 4403034101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4405131853) 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, 349228 + ... + 361621.

It is an arithmetic number, because the mean of its divisors is an integer number (1101462075).

Almost surely, 24405131253 is an apocalyptic number.

It is an amenable number.

4405131253 is a deficient number, since it is larger than the sum of its proper divisors (717047).

4405131253 is an equidigital number, since it uses as much as digits as its factorization.

4405131253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717046.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 4405131253 is about 66371.1628118718. The cubic root of 4405131253 is about 1639.2792853684.

Adding to 4405131253 its reverse (3521315044), we get a palindrome (7926446297).

The spelling of 4405131253 in words is "four billion, four hundred five million, one hundred thirty-one thousand, two hundred fifty-three".

Divisors: 1 6197 710849 4405131253