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130131792 = 24337231871
BaseRepresentation
bin1111100000110…
…10011101010000
3100001212101021000
413300122131100
5231303204132
620525102000
73140046660
oct760323520
9301771230
10130131792
1167501a3a
12376b7900
1320c6377b
14133d61a0
15b65787c
hex7c1a750

130131792 has 160 divisors (see below), whose sum is σ = 445685760. Its totient is φ = 35544960.

The previous prime is 130131791. The next prime is 130131809. The reversal of 130131792 is 297131031.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130131791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68617 + ... + 70487.

It is an arithmetic number, because the mean of its divisors is an integer number (2785536).

Almost surely, 2130131792 is an apocalyptic number.

130131792 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 130131792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222842880).

130131792 is an abundant number, since it is smaller than the sum of its proper divisors (315553968).

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

130131792 is a wasteful number, since it uses less digits than its factorization.

130131792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 130131792 is about 11407.5322484751. The cubic root of 130131792 is about 506.7508316630.

The spelling of 130131792 in words is "one hundred thirty million, one hundred thirty-one thousand, seven hundred ninety-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 23 24 27 28 36 42 46 48 54 56 63 69 72 84 92 108 112 126 138 144 161 168 184 189 207 216 252 276 322 336 368 378 414 432 483 504 552 621 644 756 828 966 1008 1104 1242 1288 1449 1512 1656 1871 1932 2484 2576 2898 3024 3312 3742 3864 4347 4968 5613 5796 7484 7728 8694 9936 11226 11592 13097 14968 16839 17388 22452 23184 26194 29936 33678 34776 39291 43033 44904 50517 52388 67356 69552 78582 86066 89808 101034 104776 117873 129099 134712 157164 172132 202068 209552 235746 258198 269424 301231 314328 344264 353619 387297 404136 471492 516396 602462 628656 688528 707238 774594 808272 903693 942984 1032792 1161891 1204924 1414476 1549188 1807386 1885968 2065584 2323782 2409848 2711079 2828952 3098376 3614772 4647564 4819696 5422158 5657904 6196752 7229544 8133237 9295128 10844316 14459088 16266474 18590256 21688632 32532948 43377264 65065896 130131792