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130401320 = 23573741307
BaseRepresentation
bin1111100010111…
…00010000101000
3100002101001222112
413301130100220
5231340320240
620534541452
73142251530
oct761342050
9302331875
10130401320
1167676495
1237807888
132102935a
14134664c0
15b6ac665
hex7c5c428

130401320 has 128 divisors (see below), whose sum is σ = 353928960. Its totient is φ = 42301440.

The previous prime is 130401307. The next prime is 130401379. The reversal of 130401320 is 23104031.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 130401295 and 130401304.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424607 + ... + 424913.

It is an arithmetic number, because the mean of its divisors is an integer number (2765070).

Almost surely, 2130401320 is an apocalyptic number.

130401320 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 130401320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176964480).

130401320 is an abundant number, since it is smaller than the sum of its proper divisors (223527640).

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

130401320 is a wasteful number, since it uses less digits than its factorization.

130401320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 130401320 is about 11419.3397357290. The cubic root of 130401320 is about 507.1004499166.

Adding to 130401320 its reverse (23104031), we get a palindrome (153505351).

The spelling of 130401320 in words is "one hundred thirty million, four hundred one thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 37 40 41 56 70 74 82 140 148 164 185 205 259 280 287 296 307 328 370 410 518 574 614 740 820 1036 1148 1228 1295 1435 1480 1517 1535 1640 2072 2149 2296 2456 2590 2870 3034 3070 4298 5180 5740 6068 6140 7585 8596 10360 10619 10745 11359 11480 12136 12280 12587 15170 17192 21238 21490 22718 25174 30340 42476 42980 45436 50348 53095 56795 60680 62935 79513 84952 85960 88109 90872 100696 106190 113590 125870 159026 176218 212380 227180 251740 318052 352436 397565 424760 440545 454360 465719 503480 636104 704872 795130 881090 931438 1590260 1762180 1862876 2328595 3180520 3260033 3524360 3725752 4657190 6520066 9314380 13040132 16300165 18628760 26080264 32600330 65200660 130401320