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1223236 = 2272792
BaseRepresentation
bin100101010101001000100
32022010222001
410222221010
5303120421
642115044
713253200
oct4525104
92263861
101223236
11766043
124aba84
1333aa11
1423bb00
15192691
hex12aa44

1223236 has 27 divisors (see below), whose sum is σ = 2522079. Its totient is φ = 517608.

The previous prime is 1223231. The next prime is 1223237. The reversal of 1223236 is 6323221.

The square root of 1223236 is 1106.

It is a perfect power (a square), and thus also a powerful number.

It is a zygodrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1223231) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15445 + ... + 15523.

21223236 is an apocalyptic number.

1223236 is the 1106-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223236

1223236 is an abundant number, since it is smaller than the sum of its proper divisors (1298843).

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

1223236 is an equidigital number, since it uses as much as digits as its factorization.

1223236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 88 counting only the distinct ones).

The product of its digits is 432, while the sum is 19.

The cubic root of 1223236 is about 106.9473639852.

Adding to 1223236 its reverse (6323221), we get a palindrome (7546457).

The spelling of 1223236 in words is "one million, two hundred twenty-three thousand, two hundred thirty-six".

Divisors: 1 2 4 7 14 28 49 79 98 158 196 316 553 1106 2212 3871 6241 7742 12482 15484 24964 43687 87374 174748 305809 611618 1223236