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12212893 = 711214419
BaseRepresentation
bin101110100101…
…101010011101
3211222110221101
4232211222131
511111303033
61113433101
7205544050
oct56455235
924873841
1012212893
116991800
12410b791
1326b7b84
14189ca97
15111397d
hexba5a9d

12212893 has 12 divisors (see below), whose sum is σ = 15342880. Its totient is φ = 9515880.

The previous prime is 12212887. The next prime is 12212899. The reversal of 12212893 is 39821221.

It is an interprime number because it is at equal distance from previous prime (12212887) and next prime (12212899).

It is not a de Polignac number, because 12212893 - 25 = 12212861 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6363 + ... + 8056.

Almost surely, 212212893 is an apocalyptic number.

It is an amenable number.

12212893 is a deficient number, since it is larger than the sum of its proper divisors (3129987).

12212893 is a wasteful number, since it uses less digits than its factorization.

12212893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14448 (or 14437 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 12212893 is about 3494.6949795368. The cubic root of 12212893 is about 230.2888180150.

It can be divided in two parts, 122128 and 93, that added together give a palindrome (122221).

The spelling of 12212893 in words is "twelve million, two hundred twelve thousand, eight hundred ninety-three".

Divisors: 1 7 11 77 121 847 14419 100933 158609 1110263 1744699 12212893