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1223213241 = 38934913127
BaseRepresentation
bin100100011101000…
…1100000010111001
310011020200200010010
41020322030002321
510001120310431
6321213412133
742212066235
oct11072140271
93136620103
101223213241
11578521238
122a179a049
13166561323
14b86535c5
15725c3846
hex48e8c0b9

1223213241 has 16 divisors (see below), whose sum is σ = 1654128000. Its totient is φ = 803941248.

The previous prime is 1223213237. The next prime is 1223213269. The reversal of 1223213241 is 1423123221.

It is not a de Polignac number, because 1223213241 - 22 = 1223213237 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1223213041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86620 + ... + 99746.

It is an arithmetic number, because the mean of its divisors is an integer number (103383000).

Almost surely, 21223213241 is an apocalyptic number.

It is an amenable number.

1223213241 is a deficient number, since it is larger than the sum of its proper divisors (430914759).

1223213241 is a wasteful number, since it uses less digits than its factorization.

1223213241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13568.

The product of its digits is 576, while the sum is 21.

The square root of 1223213241 is about 34974.4655570317. The cubic root of 1223213241 is about 1069.4670070894.

Adding to 1223213241 its reverse (1423123221), we get a palindrome (2646336462).

The spelling of 1223213241 in words is "one billion, two hundred twenty-three million, two hundred thirteen thousand, two hundred forty-one".

Divisors: 1 3 89 267 349 1047 13127 31061 39381 93183 1168303 3504909 4581323 13743969 407737747 1223213241