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12228573 = 371573709
BaseRepresentation
bin101110101001…
…011111011101
3212000021110010
4232221133131
511112303243
61114033433
7205640550
oct56513735
925007403
1012228573
1169a2565
124118879
1326c2056
1418a4697
151118433
hexba97dd

12228573 has 16 divisors (see below), whose sum is σ = 18757760. Its totient is φ = 6941376.

The previous prime is 12228563. The next prime is 12228577. The reversal of 12228573 is 37582221.

It is not a de Polignac number, because 12228573 - 29 = 12228061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12228573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12228577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1443 + ... + 5151.

It is an arithmetic number, because the mean of its divisors is an integer number (1172360).

Almost surely, 212228573 is an apocalyptic number.

It is an amenable number.

12228573 is a deficient number, since it is larger than the sum of its proper divisors (6529187).

12228573 is a wasteful number, since it uses less digits than its factorization.

12228573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3876.

The product of its digits is 6720, while the sum is 30.

The square root of 12228573 is about 3496.9376602965. The cubic root of 12228573 is about 230.3873309669.

The spelling of 12228573 in words is "twelve million, two hundred twenty-eight thousand, five hundred seventy-three".

Divisors: 1 3 7 21 157 471 1099 3297 3709 11127 25963 77889 582313 1746939 4076191 12228573