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12135292 = 2213233371
BaseRepresentation
bin101110010010…
…101101111100
3211211112111021
4232102231330
511101312132
61112033524
7205101601
oct56225574
924745437
1012135292
116939474
1240928a4
13268b760
14187c6a8
1510ea997
hexb92b7c

12135292 has 12 divisors (see below), whose sum is σ = 22870456. Its totient is φ = 5600880.

The previous prime is 12135289. The next prime is 12135293. The reversal of 12135292 is 29253121.

It is a happy number.

It is a hoax number, since the sum of its digits (25) 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 (12135293) 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, 116634 + ... + 116737.

Almost surely, 212135292 is an apocalyptic number.

It is an amenable number.

12135292 is a deficient number, since it is larger than the sum of its proper divisors (10735164).

12135292 is a wasteful number, since it uses less digits than its factorization.

12135292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233388 (or 233386 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 12135292 is about 3483.5746008949. The cubic root of 12135292 is about 229.8000278240.

The spelling of 12135292 in words is "twelve million, one hundred thirty-five thousand, two hundred ninety-two".

Divisors: 1 2 4 13 26 52 233371 466742 933484 3033823 6067646 12135292