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12245388 = 2234124889
BaseRepresentation
bin101110101101…
…100110001100
3212001010111220
4232231212030
511113323023
61114243340
7206040561
oct56554614
925033456
1012245388
116a04161
124126550
1326c98bc
1418aa868
15111d3e3
hexbad98c

12245388 has 24 divisors (see below), whose sum is σ = 29270640. Its totient is φ = 3982080.

The previous prime is 12245381. The next prime is 12245399. The reversal of 12245388 is 88354221.

It is not an unprimeable number, because it can be changed into a prime (12245381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11953 + ... + 12936.

It is an arithmetic number, because the mean of its divisors is an integer number (1219610).

Almost surely, 212245388 is an apocalyptic number.

It is an amenable number.

12245388 is an abundant number, since it is smaller than the sum of its proper divisors (17025252).

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

12245388 is a wasteful number, since it uses less digits than its factorization.

12245388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24937 (or 24935 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 12245388 is about 3499.3410808322. The cubic root of 12245388 is about 230.4928812679.

It can be divided in two parts, 12 and 245388, that multiplied together give a square (2944656 = 17162).

The spelling of 12245388 in words is "twelve million, two hundred forty-five thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 492 24889 49778 74667 99556 149334 298668 1020449 2040898 3061347 4081796 6122694 12245388