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12448629144 = 2332724637621
BaseRepresentation
bin10111001011111111…
…10000000110011000
31012010120021212211200
423211333300012120
5200443322113034
65415133154200
7620326413300
oct134577600630
935116255750
1012448629144
115308a21366
1224b502b960
1312350a1563
14861440600
154ccd3ca99
hex2e5ff0198

12448629144 has 144 divisors (see below), whose sum is σ = 39309397920. Its totient is φ = 3548603520.

The previous prime is 12448629143. The next prime is 12448629199. The reversal of 12448629144 is 44192684421.

12448629144 is a `hidden beast` number, since 1 + 2 + 4 + 4 + 8 + 629 + 14 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12448629144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12448629143) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1629654 + ... + 1637274.

It is an arithmetic number, because the mean of its divisors is an integer number (272981930).

Almost surely, 212448629144 is an apocalyptic number.

12448629144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12448629144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19654698960).

12448629144 is an abundant number, since it is smaller than the sum of its proper divisors (26860768776).

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

12448629144 is a wasteful number, since it uses less digits than its factorization.

12448629144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8110 (or 8096 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The spelling of 12448629144 in words is "twelve billion, four hundred forty-eight million, six hundred twenty-nine thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 49 56 63 72 84 98 126 147 168 196 252 294 392 441 463 504 588 882 926 1176 1389 1764 1852 2778 3241 3528 3704 4167 5556 6482 7621 8334 9723 11112 12964 15242 16668 19446 22687 22863 25928 29169 30484 33336 38892 45374 45726 53347 58338 60968 68061 68589 77784 90748 91452 106694 116676 136122 137178 160041 181496 182904 204183 213388 233352 272244 274356 320082 373429 408366 426776 480123 544488 548712 640164 746858 816732 960246 1120287 1280328 1493716 1633464 1920492 2240574 2987432 3360861 3528523 3840984 4481148 6721722 7057046 8962296 10585569 13443444 14114092 21171138 24699661 26886888 28228184 31756707 42342276 49399322 63513414 74098983 84684552 98798644 127026828 148197966 172897627 197597288 222296949 254053656 296395932 345795254 444593898 518692881 592791864 691590508 889187796 1037385762 1383181016 1556078643 1778375592 2074771524 3112157286 4149543048 6224314572 12448629144