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26930155 = 572109919
BaseRepresentation
bin110011010111…
…0101111101011
31212200012020011
41212232233223
523343231110
62401112351
7444621400
oct146565753
955605204
1026930155
111422402a
1290286b7
13576b905
1438102a7
15256e48a
hex19aebeb

26930155 has 12 divisors (see below), whose sum is σ = 37592640. Its totient is φ = 18466224.

The previous prime is 26930147. The next prime is 26930161. The reversal of 26930155 is 55103962.

It is not a de Polignac number, because 26930155 - 23 = 26930147 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54715 + ... + 55204.

It is an arithmetic number, because the mean of its divisors is an integer number (3132720).

Almost surely, 226930155 is an apocalyptic number.

26930155 is a deficient number, since it is larger than the sum of its proper divisors (10662485).

26930155 is a wasteful number, since it uses less digits than its factorization.

26930155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109938 (or 109931 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 26930155 is about 5189.4272323639. The cubic root of 26930155 is about 299.7410914336.

The spelling of 26930155 in words is "twenty-six million, nine hundred thirty thousand, one hundred fifty-five".

Divisors: 1 5 7 35 49 245 109919 549595 769433 3847165 5386031 26930155