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12145384 = 2311871279
BaseRepresentation
bin101110010101…
…001011101000
3211212001100001
4232111023220
511102123014
61112152344
7205143166
oct56251350
924761301
1012145384
116946009
1240986b4
132693224
141882236
1510ed974
hexb952e8

12145384 has 16 divisors (see below), whose sum is σ = 22809600. Its totient is φ = 6062832.

The previous prime is 12145379. The next prime is 12145387. The reversal of 12145384 is 48354121.

12145384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12145387) 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, 8857 + ... + 10135.

It is an arithmetic number, because the mean of its divisors is an integer number (1425600).

Almost surely, 212145384 is an apocalyptic number.

It is an amenable number.

12145384 is a deficient number, since it is larger than the sum of its proper divisors (10664216).

12145384 is a wasteful number, since it uses less digits than its factorization.

12145384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472 (or 2468 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 12145384 is about 3485.0228119770. The cubic root of 12145384 is about 229.8637125790.

The spelling of 12145384 in words is "twelve million, one hundred forty-five thousand, three hundred eighty-four".

Divisors: 1 2 4 8 1187 1279 2374 2558 4748 5116 9496 10232 1518173 3036346 6072692 12145384