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130221441312 = 25329107437149
BaseRepresentation
bin111100101000111001…
…1011000000100100000
3110110010100121121222220
41321101303120010200
54113143142110222
6135453425231040
712260002662564
oct1712163300440
9413110547886
10130221441312
1150254677286
12212a2a92480
13c383a282b1
146434a6d6a4
1535c2505b5c
hex1e51cd8120

130221441312 has 96 divisors (see below), whose sum is σ = 356924232000. Its totient is φ = 41518568448.

The previous prime is 130221441269. The next prime is 130221441313. The reversal of 130221441312 is 213144122031.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (130221441313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79314 + ... + 516462.

It is an arithmetic number, because the mean of its divisors is an integer number (3717960750).

Almost surely, 2130221441312 is an apocalyptic number.

130221441312 is a gapful number since it is divisible by the number (12) 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 130221441312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178462116000).

130221441312 is an abundant number, since it is smaller than the sum of its proper divisors (226702790688).

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

130221441312 is a wasteful number, since it uses less digits than its factorization.

130221441312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437298 (or 437290 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 130221441312 its reverse (213144122031), we get a palindrome (343365563343).

The spelling of 130221441312 in words is "one hundred thirty billion, two hundred twenty-one million, four hundred forty-one thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 29 32 48 58 87 96 107 116 174 214 232 321 348 428 464 642 696 856 928 1284 1392 1712 2568 2784 3103 3424 5136 6206 9309 10272 12412 18618 24824 37236 49648 74472 99296 148944 297888 437149 874298 1311447 1748596 2622894 3497192 5245788 6994384 10491576 12677321 13988768 20983152 25354642 38031963 41966304 46774943 50709284 76063926 93549886 101418568 140324829 152127852 187099772 202837136 280649658 304255704 374199544 405674272 561299316 608511408 748399088 1122598632 1217022816 1356473347 1496798176 2245197264 2712946694 4069420041 4490394528 5425893388 8138840082 10851786776 16277680164 21703573552 32555360328 43407147104 65110720656 130221441312