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26530349 = 64141389
BaseRepresentation
bin110010100110…
…1001000101101
31211220212210112
41211031020231
523242432344
62344345405
7441334646
oct145151055
954825715
1026530349
1113a8070a
128a75265
13565b941
1437486cd
1524e0c9e
hex194d22d

26530349 has 4 divisors (see below), whose sum is σ = 26572380. Its totient is φ = 26488320.

The previous prime is 26530313. The next prime is 26530351. The reversal of 26530349 is 94303562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94303562 = 247151781.

It can be written as a sum of positive squares in 2 ways, for example, as 21557449 + 4972900 = 4643^2 + 2230^2 .

It is a cyclic number.

It is not a de Polignac number, because 26530349 - 28 = 26530093 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 (26530849) 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, 20054 + ... + 21335.

It is an arithmetic number, because the mean of its divisors is an integer number (6643095).

Almost surely, 226530349 is an apocalyptic number.

It is an amenable number.

26530349 is a deficient number, since it is larger than the sum of its proper divisors (42031).

26530349 is an equidigital number, since it uses as much as digits as its factorization.

26530349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42030.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 26530349 is about 5150.7619824643. The cubic root of 26530349 is about 298.2503676443.

The spelling of 26530349 in words is "twenty-six million, five hundred thirty thousand, three hundred forty-nine".

Divisors: 1 641 41389 26530349