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130024020 = 22357353877
BaseRepresentation
bin1111100000000…
…00001001010100
3100001122220102110
413300000021110
5231241232040
620522511020
73136120530
oct760001124
9301586373
10130024020
1167438a75
1237665470
1320c266b9
14133a8bc0
15b635980
hex7c00254

130024020 has 96 divisors (see below), whose sum is σ = 417731328. Its totient is φ = 29601792.

The previous prime is 130024009. The next prime is 130024021. The reversal of 130024020 is 20420031.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 130023987 and 130024005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130024021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147822 + ... + 148698.

It is an arithmetic number, because the mean of its divisors is an integer number (4351368).

Almost surely, 2130024020 is an apocalyptic number.

130024020 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 130024020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208865664).

130024020 is an abundant number, since it is smaller than the sum of its proper divisors (287707308).

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

130024020 is a wasteful number, since it uses less digits than its factorization.

130024020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249 (or 1247 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 130024020 is about 11402.8075490205. The cubic root of 130024020 is about 506.6109001026.

Adding to 130024020 its reverse (20420031), we get a palindrome (150444051).

The spelling of 130024020 in words is "one hundred thirty million, twenty-four thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 353 420 706 877 1059 1412 1754 1765 2118 2471 2631 3508 3530 4236 4385 4942 5262 5295 6139 7060 7413 8770 9884 10524 10590 12278 12355 13155 14826 17540 18417 21180 24556 24710 26310 29652 30695 36834 37065 49420 52620 61390 73668 74130 92085 122780 148260 184170 309581 368340 619162 928743 1238324 1547905 1857486 2167067 3095810 3714972 4334134 4643715 6191620 6501201 8668268 9287430 10835335 13002402 18574860 21670670 26004804 32506005 43341340 65012010 130024020