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26530407 = 322947823
BaseRepresentation
bin110010100110…
…1001001100111
31211220212212200
41211031021213
523242433112
62344345543
7441335061
oct145151147
954825780
1026530407
1113a80762
128a752b3
13565b987
143748731
1524e0cdc
hex194d267

26530407 has 6 divisors (see below), whose sum is σ = 38321712. Its totient is φ = 17686932.

The previous prime is 26530397. The next prime is 26530417. The reversal of 26530407 is 70403562.

It is a happy number.

26530407 is a `hidden beast` number, since 2 + 653 + 0 + 4 + 0 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (26530397) and next prime (26530417).

It is not a de Polignac number, because 26530407 - 27 = 26530279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26530417) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 1473903 + ... + 1473920.

It is an arithmetic number, because the mean of its divisors is an integer number (6386952).

Almost surely, 226530407 is an apocalyptic number.

26530407 is a deficient number, since it is larger than the sum of its proper divisors (11791305).

26530407 is a wasteful number, since it uses less digits than its factorization.

26530407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2947829 (or 2947826 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 26530407 is about 5150.7676126962. The cubic root of 26530407 is about 298.2505849867.

Adding to 26530407 its reverse (70403562), we get a palindrome (96933969).

The spelling of 26530407 in words is "twenty-six million, five hundred thirty thousand, four hundred seven".

Divisors: 1 3 9 2947823 8843469 26530407