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1223030 = 251941157
BaseRepresentation
bin100101010100101110110
32022010200102
410222211312
5303114110
642114102
713252454
oct4524566
92263612
101223030
11765976
124ab932
1333a8b3
1423b9d4
151925a5
hex12a976

1223030 has 32 divisors (see below), whose sum is σ = 2388960. Its totient is φ = 449280.

The previous prime is 1223029. The next prime is 1223039. The reversal of 1223030 is 303221.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7712 + ... + 7868.

It is an arithmetic number, because the mean of its divisors is an integer number (74655).

21223030 is an apocalyptic number.

1223030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223030 is a deficient number, since it is larger than the sum of its proper divisors (1165930).

1223030 is a wasteful number, since it uses less digits than its factorization.

1223030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 1223030 is about 1105.9068676882. The cubic root of 1223030 is about 106.9413601304.

Adding to 1223030 its reverse (303221), we get a palindrome (1526251).

The spelling of 1223030 in words is "one million, two hundred twenty-three thousand, thirty".

Divisors: 1 2 5 10 19 38 41 82 95 157 190 205 314 410 779 785 1558 1570 2983 3895 5966 6437 7790 12874 14915 29830 32185 64370 122303 244606 611515 1223030