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12194892 = 2232338747
BaseRepresentation
bin101110100001…
…010001001100
3211221120020200
4232201101030
511110214032
61113213500
7205440423
oct56412114
924846220
1012194892
11697a226
124101290
1326ac918
1418962ba
15110d47c
hexba144c

12194892 has 18 divisors (see below), whose sum is σ = 30826068. Its totient is φ = 4064952.

The previous prime is 12194881. The next prime is 12194909. The reversal of 12194892 is 29849121.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 338747 = 12194892 / (1 + 2 + 1 + 9 + 4 + 8 + 9 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 169338 + ... + 169409.

Almost surely, 212194892 is an apocalyptic number.

12194892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12194892 is an abundant number, since it is smaller than the sum of its proper divisors (18631176).

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

12194892 is a wasteful number, since it uses less digits than its factorization.

12194892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338757 (or 338752 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 12194892 is about 3492.1185546885. The cubic root of 12194892 is about 230.1756188634.

The spelling of 12194892 in words is "twelve million, one hundred ninety-four thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 338747 677494 1016241 1354988 2032482 3048723 4064964 6097446 12194892