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11025512321 = 80913628569
BaseRepresentation
bin10100100010010101…
…11111011110000001
31001110101110001120012
422101022333132001
5140040012343241
65022014554305
7540136210535
oct122112773601
931411401505
1011025512321
11474868365a
122178508995
1310692baab5
14768431bc5
15447e2d6eb
hex2912bf781

11025512321 has 4 divisors (see below), whose sum is σ = 11039141700. Its totient is φ = 11011882944.

The previous prime is 11025512317. The next prime is 11025512383. The reversal of 11025512321 is 12321552011.

11025512321 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.

It can be written as a sum of positive squares in 2 ways, for example, as 10493748721 + 531763600 = 102439^2 + 23060^2 .

It is a cyclic number.

It is not a de Polignac number, because 11025512321 - 22 = 11025512317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11025512521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6813476 + ... + 6815093.

It is an arithmetic number, because the mean of its divisors is an integer number (2759785425).

Almost surely, 211025512321 is an apocalyptic number.

It is an amenable number.

11025512321 is a deficient number, since it is larger than the sum of its proper divisors (13629379).

11025512321 is an equidigital number, since it uses as much as digits as its factorization.

11025512321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13629378.

The product of its (nonzero) digits is 600, while the sum is 23.

The spelling of 11025512321 in words is "eleven billion, twenty-five million, five hundred twelve thousand, three hundred twenty-one".

Divisors: 1 809 13628569 11025512321