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1075641505 = 5215128301
BaseRepresentation
bin100000000011100…
…1111110010100001
32202222000020202021
41000013033302201
54200331012010
6254422421441
735440542031
oct10007176241
92688006667
101075641505
11502198424
12260291881
13141b02783
14a2bdb8c1
15646738da
hex401cfca1

1075641505 has 4 divisors (see below), whose sum is σ = 1290769812. Its totient is φ = 860513200.

The previous prime is 1075641499. The next prime is 1075641569. The reversal of 1075641505 is 5051465701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5051465701 = 6018405101.

It can be written as a sum of positive squares in 2 ways, for example, as 531025936 + 544615569 = 23044^2 + 23337^2 .

It is not a de Polignac number, because 1075641505 - 217 = 1075510433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107564146 + ... + 107564155.

It is an arithmetic number, because the mean of its divisors is an integer number (322692453).

Almost surely, 21075641505 is an apocalyptic number.

It is an amenable number.

1075641505 is a deficient number, since it is larger than the sum of its proper divisors (215128307).

1075641505 is an equidigital number, since it uses as much as digits as its factorization.

1075641505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215128306.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 1075641505 is about 32796.9740220039. The cubic root of 1075641505 is about 1024.6035365374.

The spelling of 1075641505 in words is "one billion, seventy-five million, six hundred forty-one thousand, five hundred five".

Divisors: 1 5 215128301 1075641505