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26307242 = 2131011817
BaseRepresentation
bin110010001011…
…0101010101010
31211111112202022
41210112222222
523213312432
62335504442
7436415333
oct144265252
954445668
1026307242
1113939025
128988122
1355b1220
1436cb28a
152499b12
hex1916aaa

26307242 has 8 divisors (see below), whose sum is σ = 42496356. Its totient is φ = 12141792.

The previous prime is 26307241. The next prime is 26307247. The reversal of 26307242 is 24270362.

It can be written as a sum of positive squares in 2 ways, for example, as 21893041 + 4414201 = 4679^2 + 2101^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 1011817 = 26307242 / (2 + 6 + 3 + 0 + 7 + 2 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (26307241) 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, 505883 + ... + 505934.

Almost surely, 226307242 is an apocalyptic number.

26307242 is a deficient number, since it is larger than the sum of its proper divisors (16189114).

26307242 is a wasteful number, since it uses less digits than its factorization.

26307242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011832.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 26307242 is about 5129.0585880842. The cubic root of 26307242 is about 297.4119674563.

The spelling of 26307242 in words is "twenty-six million, three hundred seven thousand, two hundred forty-two".

Divisors: 1 2 13 26 1011817 2023634 13153621 26307242