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12506026 = 213481001
BaseRepresentation
bin101111101101…
…001110101010
3212112101001011
4233231032222
511200143101
61124014134
7211204501
oct57551652
925471034
1012506026
117071a65
12423134a
13278b420
141937838
151170751
hexbed3aa

12506026 has 8 divisors (see below), whose sum is σ = 20202084. Its totient is φ = 5772000.

The previous prime is 12506023. The next prime is 12506027. The reversal of 12506026 is 62060521.

It can be written as a sum of positive squares in 2 ways, for example, as 12496225 + 9801 = 3535^2 + 99^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12505988 and 12506006.

It is not an unprimeable number, because it can be changed into a prime (12506023) 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, 240475 + ... + 240526.

Almost surely, 212506026 is an apocalyptic number.

12506026 is a deficient number, since it is larger than the sum of its proper divisors (7696058).

12506026 is a wasteful number, since it uses less digits than its factorization.

12506026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481016.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 12506026 is about 3536.3860083424. The cubic root of 12506026 is about 232.1167293085.

Adding to 12506026 its reverse (62060521), we get a palindrome (74566547).

The spelling of 12506026 in words is "twelve million, five hundred six thousand, twenty-six".

Divisors: 1 2 13 26 481001 962002 6253013 12506026