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12394480 = 245722133
BaseRepresentation
bin101111010001…
…111111110000
3212022201000211
4233101333300
511133110410
61121353504
7210231340
oct57217760
925281024
1012394480
116aa617a
124198894
13274c717
141908d20
15114c68a
hexbd1ff0

12394480 has 40 divisors (see below), whose sum is σ = 32935392. Its totient is φ = 4249344.

The previous prime is 12394471. The next prime is 12394483. The reversal of 12394480 is 8449321.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12394483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10507 + ... + 11626.

Almost surely, 212394480 is an apocalyptic number.

12394480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12394480 is an abundant number, since it is smaller than the sum of its proper divisors (20540912).

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

12394480 is a wasteful number, since it uses less digits than its factorization.

12394480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22153 (or 22147 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 12394480 is about 3520.5794977532. The cubic root of 12394480 is about 231.4245548399.

The spelling of 12394480 in words is "twelve million, three hundred ninety-four thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 22133 44266 88532 110665 154931 177064 221330 309862 354128 442660 619724 774655 885320 1239448 1549310 1770640 2478896 3098620 6197240 12394480