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1223230203 = 3213194113421
BaseRepresentation
bin100100011101001…
…0000001011111011
310011020201112101100
41020322100023323
510001121331303
6321214022443
742212166546
oct11072201373
93136645340
101223230203
11578532a58
122a17a7a23
13166568c70
14b865985d
15725c88a3
hex48e902fb

1223230203 has 48 divisors (see below), whose sum is σ = 2051955360. Its totient is φ = 695692800.

The previous prime is 1223230187. The next prime is 1223230207. The reversal of 1223230203 is 3020323221.

It is a happy number.

It is not a de Polignac number, because 1223230203 - 24 = 1223230187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223230207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84433 + ... + 97853.

It is an arithmetic number, because the mean of its divisors is an integer number (42749070).

Almost surely, 21223230203 is an apocalyptic number.

1223230203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1223230203 is a deficient number, since it is larger than the sum of its proper divisors (828725157).

1223230203 is a wasteful number, since it uses less digits than its factorization.

1223230203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13500 (or 13497 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1223230203 is about 34974.7080473876. The cubic root of 1223230203 is about 1069.4719504127.

Adding to 1223230203 its reverse (3020323221), we get a palindrome (4243553424).

The spelling of 1223230203 in words is "one billion, two hundred twenty-three million, two hundred thirty thousand, two hundred three".

Divisors: 1 3 9 13 19 39 41 57 117 123 171 247 369 533 741 779 1599 2223 2337 4797 7011 10127 13421 30381 40263 91143 120789 174473 254999 523419 550261 764997 1570257 1650783 2294991 3314987 4952349 7153393 9944961 10454959 21460179 29834883 31364877 64380537 94094631 135914467 407743401 1223230203