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12004080 = 2435114547
BaseRepresentation
bin101101110010…
…101011110000
3211120212111120
4231302223300
511033112310
61105142240
7204014214
oct55625360
924525446
1012004080
116859930
12402a980
132643b0a
141846944
1510c1b70
hexb72af0

12004080 has 80 divisors (see below), whose sum is σ = 40604544. Its totient is φ = 2909440.

The previous prime is 12004051. The next prime is 12004087. The reversal of 12004080 is 8040021.

12004080 = T633 + T634 + ... + T687.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12004087) 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 15 ways as a sum of consecutive naturals, for example, 367 + ... + 4913.

Almost surely, 212004080 is an apocalyptic number.

12004080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12004080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20302272).

12004080 is an abundant number, since it is smaller than the sum of its proper divisors (28600464).

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

12004080 is a wasteful number, since it uses less digits than its factorization.

12004080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4574 (or 4568 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 12004080 is about 3464.6904623646. The cubic root of 12004080 is about 228.9687924267.

The spelling of 12004080 in words is "twelve million, four thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 55 60 66 80 88 110 120 132 165 176 220 240 264 330 440 528 660 880 1320 2640 4547 9094 13641 18188 22735 27282 36376 45470 50017 54564 68205 72752 90940 100034 109128 136410 150051 181880 200068 218256 250085 272820 300102 363760 400136 500170 545640 600204 750255 800272 1000340 1091280 1200408 1500510 2000680 2400816 3001020 4001360 6002040 12004080