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1310228244 = 2233133892399
BaseRepresentation
bin100111000011000…
…0111111100010100
310101022102111021000
41032012013330110
510140404300434
6334002423300
744316520263
oct11606077424
93338374230
101310228244
11612653966
12306961b30
1317b5a96b0
14c60245da
157a060b99
hex4e187f14

1310228244 has 96 divisors (see below), whose sum is σ = 3669120000. Its totient is φ = 401943168.

The previous prime is 1310228219. The next prime is 1310228261. The reversal of 1310228244 is 4428220131.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 544957 + ... + 547355.

It is an arithmetic number, because the mean of its divisors is an integer number (38220000).

Almost surely, 21310228244 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 1310228244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1834560000).

1310228244 is an abundant number, since it is smaller than the sum of its proper divisors (2358891756).

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

1310228244 is a wasteful number, since it uses less digits than its factorization.

1310228244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814 (or 2806 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 1310228244 is about 36197.0750752046. The cubic root of 1310228244 is about 1094.2477249949.

Adding to 1310228244 its reverse (4428220131), we get a palindrome (5738448375).

The spelling of 1310228244 in words is "one billion, three hundred ten million, two hundred twenty-eight thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 108 117 156 234 351 389 468 702 778 1167 1404 1556 2334 2399 3501 4668 4798 5057 7002 7197 9596 10114 10503 14004 14394 15171 20228 21006 21591 28788 30342 31187 42012 43182 45513 60684 62374 64773 86364 91026 93561 124748 129546 136539 182052 187122 259092 273078 280683 374244 546156 561366 842049 933211 1122732 1684098 1866422 2799633 3368196 3732844 5599266 8398899 11198532 12131743 16797798 24263486 25196697 33595596 36395229 48526972 50393394 72790458 100786788 109185687 145580916 218371374 327557061 436742748 655114122 1310228244