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130221200268 = 2232172367138079
BaseRepresentation
bin111100101000111001…
…0011101001110001100
3110110010100011101100100
41321101302131032030
54113143111402033
6135453420131100
712260000640045
oct1712162351614
9413110141310
10130221200268
1150254522175
12212a2996a90
13c383972673
146434a098cc
1535c24a9513
hex1e51c9d38c

130221200268 has 144 divisors (see below), whose sum is σ = 369117665280. Its totient is φ = 38493937152.

The previous prime is 130221200261. The next prime is 130221200269. The reversal of 130221200268 is 862002122031.

It is not an unprimeable number, because it can be changed into a prime (130221200261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 874053 + ... + 1012131.

It is an arithmetic number, because the mean of its divisors is an integer number (2563317120).

Almost surely, 2130221200268 is an apocalyptic number.

130221200268 is a gapful number since it is divisible by the number (18) 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 130221200268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184558832640).

130221200268 is an abundant number, since it is smaller than the sum of its proper divisors (238896465012).

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

130221200268 is a wasteful number, since it uses less digits than its factorization.

130221200268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138196 (or 138191 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 130221200268 its reverse (862002122031), we get a palindrome (992223322299).

The spelling of 130221200268 in words is "one hundred thirty billion, two hundred twenty-one million, two hundred thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 17 18 23 34 36 46 51 67 68 69 92 102 134 138 153 201 204 207 268 276 306 391 402 414 603 612 782 804 828 1139 1173 1206 1541 1564 2278 2346 2412 3082 3417 3519 4556 4623 4692 6164 6834 7038 9246 10251 13668 13869 14076 18492 20502 26197 27738 41004 52394 55476 78591 104788 138079 157182 235773 276158 314364 414237 471546 552316 828474 943092 1242711 1656948 2347343 2485422 3175817 4694686 4970844 6351634 7042029 9251293 9389372 9527451 12703268 14084058 18502586 19054902 21126087 27753879 28168116 28582353 37005172 38109804 42252174 53988889 55507758 57164706 83261637 84504348 107977778 111015516 114329412 157271981 161966667 166523274 212779739 215955556 314543962 323933334 333046548 425559478 471815943 485900001 629087924 638339217 647866668 851118956 943631886 971800002 1276678434 1415447829 1887263772 1915017651 1943600004 2553356868 2830895658 3617255563 3830035302 5661791316 7234511126 7660070604 10851766689 14469022252 21703533378 32555300067 43407066756 65110600134 130221200268