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1550041212 = 223129170101
BaseRepresentation
bin101110001100011…
…1100000001111100
311000000200020210210
41130120330001330
511133302304322
6413450432420
753261063406
oct13430740174
94000606723
101550041212
11725a599a5
12373132710
131b9193365
14109c0bb76
159113170c
hex5c63c07c

1550041212 has 12 divisors (see below), whose sum is σ = 3616762856. Its totient is φ = 516680400.

The previous prime is 1550041183. The next prime is 1550041219. The reversal of 1550041212 is 2121400551.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550041219) 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, 64585039 + ... + 64585062.

Almost surely, 21550041212 is an apocalyptic number.

1550041212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1550041212 is an abundant number, since it is smaller than the sum of its proper divisors (2066721644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1550041212 is a wasteful number, since it uses less digits than its factorization.

1550041212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129170108 (or 129170106 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1550041212 is about 39370.5627595035. The cubic root of 1550041212 is about 1157.3047840370.

Adding to 1550041212 its reverse (2121400551), we get a palindrome (3671441763).

The spelling of 1550041212 in words is "one billion, five hundred fifty million, forty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 129170101 258340202 387510303 516680404 775020606 1550041212