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1229233 = 1279679
BaseRepresentation
bin100101100000110110001
32022110012011
410230012301
5303313413
642202521
713306525
oct4540661
92273164
101229233
1176a5a5
124b3441
13340675
1423dd85
1519433d
hex12c1b1

1229233 has 4 divisors (see below), whose sum is σ = 1239040. Its totient is φ = 1219428.

The previous prime is 1229227. The next prime is 1229237. The reversal of 1229233 is 3329221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1229233 - 25 = 1229201 is a prime.

It is a super-2 number, since 2×12292332 = 3022027536578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1229237) 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, 4713 + ... + 4966.

It is an arithmetic number, because the mean of its divisors is an integer number (309760).

21229233 is an apocalyptic number.

It is an amenable number.

1229233 is a deficient number, since it is larger than the sum of its proper divisors (9807).

1229233 is an equidigital number, since it uses as much as digits as its factorization.

1229233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9806.

The product of its digits is 648, while the sum is 22.

The square root of 1229233 is about 1108.7078064125. The cubic root of 1229233 is about 107.1218514588.

Adding to 1229233 its product of digits (648), we get a square (1229881 = 11092).

The spelling of 1229233 in words is "one million, two hundred twenty-nine thousand, two hundred thirty-three".

Divisors: 1 127 9679 1229233