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11212912 = 243132239
BaseRepresentation
bin101010110001…
…100001110000
3210002200020001
4222301201300
510332303122
61040155344
7164210464
oct52614160
923080201
1011212912
116369477
123908b54
132427979
1416bc4a4
15eb7527
hexab1870

11212912 has 20 divisors (see below), whose sum is σ = 21804160. Its totient is φ = 5586048.

The previous prime is 11212867. The next prime is 11212913. The reversal of 11212912 is 21921211.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11212912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212913) 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, 3889 + ... + 6127.

It is an arithmetic number, because the mean of its divisors is an integer number (1090208).

Almost surely, 211212912 is an apocalyptic number.

It is an amenable number.

11212912 is a deficient number, since it is larger than the sum of its proper divisors (10591248).

11212912 is a wasteful number, since it uses less digits than its factorization.

11212912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560 (or 2554 counting only the distinct ones).

The product of its digits is 72, while the sum is 19.

The square root of 11212912 is about 3348.5686494381. The cubic root of 11212912 is about 223.8237346327.

The spelling of 11212912 in words is "eleven million, two hundred twelve thousand, nine hundred twelve".

Divisors: 1 2 4 8 16 313 626 1252 2239 2504 4478 5008 8956 17912 35824 700807 1401614 2803228 5606456 11212912