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130031123012 = 2273293788327
BaseRepresentation
bin111100100011001110…
…1010111101001000100
3110102122002111110100222
41321012131113221010
54112300431414022
6135422510123512
712252202211000
oct1710635275104
9412562443328
10130031123012
11501671a732a
122124b1b0598
13c353480a0b
14641768b700
1535b0960242
hex1e46757a44

130031123012 has 96 divisors (see below), whose sum is σ = 281942976000. Its totient is φ = 52351173504.

The previous prime is 130031123009. The next prime is 130031123051. The reversal of 130031123012 is 210321130031.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1427993 + ... + 1516319.

It is an arithmetic number, because the mean of its divisors is an integer number (2936906000).

Almost surely, 2130031123012 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 130031123012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140971488000).

130031123012 is an abundant number, since it is smaller than the sum of its proper divisors (151911852988).

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

130031123012 is a wasteful number, since it uses less digits than its factorization.

130031123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88418 (or 88402 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 130031123012 its reverse (210321130031), we get a palindrome (340352253043).

The spelling of 130031123012 in words is "one hundred thirty billion, thirty-one million, one hundred twenty-three thousand, twelve".

Divisors: 1 2 4 7 14 28 29 37 49 58 74 98 116 148 196 203 259 343 406 518 686 812 1036 1073 1372 1421 1813 2146 2842 3626 4292 5684 7252 7511 9947 12691 15022 19894 25382 30044 39788 50764 52577 88327 105154 176654 210308 353308 368039 618289 736078 1236578 1472156 2473156 2561483 3268099 4328023 5122966 6536198 8656046 10245932 13072396 17312092 17930381 22876693 30296161 35860762 45753386 60592322 71721524 91506772 94774871 121184644 125512667 160136851 189549742 251025334 320273702 379099484 502050668 640547404 663424097 878588669 1120957957 1326848194 1757177338 2241915914 2653696388 3514354676 4483831828 4643968679 9287937358 18575874716 32507780753 65015561506 130031123012