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20012627 = 181110567
BaseRepresentation
bin100110001010…
…1111001010011
31101122202011102
41030111321103
520110401002
61552535015
7332050565
oct114257123
941582142
1020012627
1110329868
12685146b
1341b90bb
14292d335
151b54a02
hex1315e53

20012627 has 4 divisors (see below), whose sum is σ = 20123376. Its totient is φ = 19901880.

The previous prime is 20012609. The next prime is 20012683. The reversal of 20012627 is 72621002.

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

It is a cyclic number.

It is not a de Polignac number, because 20012627 - 26 = 20012563 is a prime.

It is a super-2 number, since 2×200126272 = 801010478882258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20012599 and 20012608.

It is not an unprimeable number, because it can be changed into a prime (20012687) 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 3 ways as a sum of consecutive naturals, for example, 55103 + ... + 55464.

It is an arithmetic number, because the mean of its divisors is an integer number (5030844).

Almost surely, 220012627 is an apocalyptic number.

20012627 is a deficient number, since it is larger than the sum of its proper divisors (110749).

20012627 is a wasteful number, since it uses less digits than its factorization.

20012627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110748.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 20012627 is about 4473.5474737617. The cubic root of 20012627 is about 271.4988745605.

Adding to 20012627 its reverse (72621002), we get a palindrome (92633629).

The spelling of 20012627 in words is "twenty million, twelve thousand, six hundred twenty-seven".

Divisors: 1 181 110567 20012627