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1223341530 = 235318871483
BaseRepresentation
bin100100011101010…
…1011010111011010
310011020221012002120
41020322223113122
510001133412110
6321220242110
742213142245
oct11072532732
93136835076
101223341530
115785a9664
122a1840336
131665a7838
14b868825c
15725eb870
hex48eab5da

1223341530 has 64 divisors (see below), whose sum is σ = 3036192768. Its totient is φ = 315132480.

The previous prime is 1223341513. The next prime is 1223341531. The reversal of 1223341530 is 351433221.

It is a self number, because there is not a number n which added to its sum of digits gives 1223341530.

It is not an unprimeable number, because it can be changed into a prime (1223341531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 824169 + ... + 825651.

It is an arithmetic number, because the mean of its divisors is an integer number (47440512).

Almost surely, 21223341530 is an apocalyptic number.

1223341530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223341530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1518096384).

1223341530 is an abundant number, since it is smaller than the sum of its proper divisors (1812851238).

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

1223341530 is a wasteful number, since it uses less digits than its factorization.

1223341530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1223341530 is about 34976.2995469790. The cubic root of 1223341530 is about 1069.5043938813.

Adding to 1223341530 its reverse (351433221), we get a palindrome (1574774751).

The spelling of 1223341530 in words is "one billion, two hundred twenty-three million, three hundred forty-one thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 887 930 1483 1774 2661 2966 4435 4449 5322 7415 8870 8898 13305 14830 22245 26610 27497 44490 45973 54994 82491 91946 137485 137919 164982 229865 274970 275838 412455 459730 689595 824910 1315421 1379190 2630842 3946263 6577105 7892526 13154210 19731315 39462630 40778051 81556102 122334153 203890255 244668306 407780510 611670765 1223341530