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13223201012 = 2271930780963
BaseRepresentation
bin11000101000010101…
…00000100011110100
31021010112210012200122
430110022200203310
5204040114413022
610024043031112
7645453232310
oct142412404364
937115705618
1013223201012
1156761746aa
12269050b498
1313296c03c8
148d626ab40
15525d40742
hex3142a08f4

13223201012 has 48 divisors (see below), whose sum is σ = 27929341440. Its totient is φ = 5351264352.

The previous prime is 13223200987. The next prime is 13223201087. The reversal of 13223201012 is 21010232231.

It is a congruent number.

It is an unprimeable number.

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, 122843 + ... + 203805.

It is an arithmetic number, because the mean of its divisors is an integer number (581861280).

Almost surely, 213223201012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13223201012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13964670720).

13223201012 is an abundant number, since it is smaller than the sum of its proper divisors (14706140428).

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

13223201012 is a wasteful number, since it uses less digits than its factorization.

13223201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81300 (or 81298 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13223201012 its reverse (21010232231), we get a palindrome (34233433243).

The spelling of 13223201012 in words is "thirteen billion, two hundred twenty-three million, two hundred one thousand, twelve".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 307 532 614 1228 2149 4298 5833 8596 11666 23332 40831 80963 81662 161926 163324 323852 566741 1133482 1538297 2266964 3076594 6153188 10768079 21536158 24855641 43072316 49711282 99422564 173989487 347978974 472257179 695957948 944514358 1889028716 3305800253 6611600506 13223201012