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26431066 = 213215533
BaseRepresentation
bin110010011010…
…0111001011010
31211201211121101
41210310321122
523231243231
62342302014
7440442334
oct144647132
954654541
1026431066
1113a13062
128a2790a
1356256ac
143720454
1524c1661
hex1934e5a

26431066 has 4 divisors (see below), whose sum is σ = 39646602. Its totient is φ = 13215532.

The previous prime is 26431051. The next prime is 26431079. The reversal of 26431066 is 66013462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17816841 + 8614225 = 4221^2 + 2935^2 .

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 as a sum of consecutive naturals, namely, 6607765 + ... + 6607768.

Almost surely, 226431066 is an apocalyptic number.

26431066 is a deficient number, since it is larger than the sum of its proper divisors (13215536).

26431066 is a wasteful number, since it uses less digits than its factorization.

26431066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13215535.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 26431066 is about 5141.1152486596. The cubic root of 26431066 is about 297.8778608514.

The spelling of 26431066 in words is "twenty-six million, four hundred thirty-one thousand, sixty-six".

Divisors: 1 2 13215533 26431066