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26068513 = 191372027
BaseRepresentation
bin110001101110…
…0011000100001
31211001102021111
41203130120201
523133143023
62330423321
7434402332
oct143343041
954042244
1026068513
1113795729
128891b41
135529673
143668289
15244e00d
hex18dc621

26068513 has 4 divisors (see below), whose sum is σ = 27440560. Its totient is φ = 24696468.

The previous prime is 26068507. The next prime is 26068529. The reversal of 26068513 is 31586062.

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 a cyclic number.

It is not a de Polignac number, because 26068513 - 25 = 26068481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26068543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685995 + ... + 686032.

It is an arithmetic number, because the mean of its divisors is an integer number (6860140).

Almost surely, 226068513 is an apocalyptic number.

It is an amenable number.

26068513 is a deficient number, since it is larger than the sum of its proper divisors (1372047).

26068513 is a wasteful number, since it uses less digits than its factorization.

26068513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372046.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 26068513 is about 5105.7333459553. The cubic root of 26068513 is about 296.5095959061.

The spelling of 26068513 in words is "twenty-six million, sixty-eight thousand, five hundred thirteen".

Divisors: 1 19 1372027 26068513