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12980304 = 243330047
BaseRepresentation
bin110001100001…
…000001010000
3220102110122000
4301201001100
511310332204
61142114000
7215221311
oct61410120
926373560
1012980304
117366327
12441b900
1328c626c
141a1c608
151216039
hexc61050

12980304 has 40 divisors (see below), whose sum is σ = 37259520. Its totient is φ = 4326624.

The previous prime is 12980273. The next prime is 12980309. The reversal of 12980304 is 40308921.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12980309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14592 + ... + 15455.

It is an arithmetic number, because the mean of its divisors is an integer number (931488).

Almost surely, 212980304 is an apocalyptic number.

It is an amenable number.

12980304 is an abundant number, since it is smaller than the sum of its proper divisors (24279216).

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

12980304 is a wasteful number, since it uses less digits than its factorization.

12980304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30064 (or 30052 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12980304 is about 3602.8188963643. The cubic root of 12980304 is about 235.0146603198.

The spelling of 12980304 in words is "twelve million, nine hundred eighty thousand, three hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 30047 60094 90141 120188 180282 240376 270423 360564 480752 540846 721128 811269 1081692 1442256 1622538 2163384 3245076 4326768 6490152 12980304