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12550045 = 512312039
BaseRepresentation
bin101111110111…
…111110011101
3212121121102111
4233313332131
511203100140
61124554021
7211450024
oct57677635
925547374
1012550045
1170a2042
124252911
1327a5481
1419498bb
15117d7ea
hexbf7f9d

12550045 has 8 divisors (see below), whose sum is σ = 15079680. Its totient is φ = 10026960.

The previous prime is 12550033. The next prime is 12550049. The reversal of 12550045 is 54005521.

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

It is not a de Polignac number, because 12550045 - 215 = 12517277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12549998 and 12550025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12550049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5136 + ... + 7174.

It is an arithmetic number, because the mean of its divisors is an integer number (1884960).

Almost surely, 212550045 is an apocalyptic number.

It is an amenable number.

12550045 is a deficient number, since it is larger than the sum of its proper divisors (2529635).

12550045 is a wasteful number, since it uses less digits than its factorization.

12550045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 12550045 is about 3542.6042680491. The cubic root of 12550045 is about 232.3887470198.

Adding to 12550045 its reverse (54005521), we get a palindrome (66555566).

The spelling of 12550045 in words is "twelve million, five hundred fifty thousand, forty-five".

Divisors: 1 5 1231 2039 6155 10195 2510009 12550045