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130313520 = 24325241751
BaseRepresentation
bin1111100010001…
…10110100110000
3100002012121112200
413301012310300
5231330013040
620533023200
73141434541
oct761066460
9302177480
10130313520
1167616527
1237784b00
1320cc83bc
14134424c8
15b691630
hex7c46d30

130313520 has 120 divisors (see below), whose sum is σ = 440037312. Its totient is φ = 34560000.

The previous prime is 130313497. The next prime is 130313537. The reversal of 130313520 is 25313031.

130313520 is a `hidden beast` number, since 130 + 3 + 13 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×1303135202 = 33963226989580800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 130313493 and 130313502.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 173145 + ... + 173895.

Almost surely, 2130313520 is an apocalyptic number.

130313520 is a gapful number since it is divisible by the number (10) 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 130313520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220018656).

130313520 is an abundant number, since it is smaller than the sum of its proper divisors (309723792).

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

130313520 is a wasteful number, since it uses less digits than its factorization.

130313520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011 (or 1002 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 130313520 is about 11415.4947330372. The cubic root of 130313520 is about 506.9866130938.

Adding to 130313520 its reverse (25313031), we get a palindrome (155626551).

The spelling of 130313520 in words is "one hundred thirty million, three hundred thirteen thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 241 360 482 720 723 751 964 1205 1446 1502 1928 2169 2253 2410 2892 3004 3615 3755 3856 4338 4506 4820 5784 6008 6759 7230 7510 8676 9012 9640 10845 11265 11568 12016 13518 14460 15020 17352 18024 19280 21690 22530 27036 28920 30040 33795 34704 36048 43380 45060 54072 57840 60080 67590 86760 90120 108144 135180 173520 180240 180991 270360 361982 540720 542973 723964 904955 1085946 1447928 1628919 1809910 2171892 2714865 2895856 3257838 3619820 4343784 5429730 6515676 7239640 8144595 8687568 10859460 13031352 14479280 16289190 21718920 26062704 32578380 43437840 65156760 130313520