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130560768 = 2833131453
BaseRepresentation
bin1111100100000…
…11001100000000
3100002200011201000
413302003030000
5231410421033
620542212000
73143514432
oct762031400
9302604630
10130560768
1167775268
1237884000
1321083ac0
14134a8652
15b6dea13
hex7c83300

130560768 has 144 divisors (see below), whose sum is σ = 416076640. Its totient is φ = 40144896.

The previous prime is 130560763. The next prime is 130560779. The reversal of 130560768 is 867065031.

130560768 is a `hidden beast` number, since 1 + 30 + 560 + 7 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×1305607682 = 34092228281499648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (130560763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89130 + ... + 90582.

Almost surely, 2130560768 is an apocalyptic number.

130560768 is a gapful number since it is divisible by the number (18) 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 130560768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208038320).

130560768 is an abundant number, since it is smaller than the sum of its proper divisors (285515872).

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

130560768 is a wasteful number, since it uses less digits than its factorization.

130560768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491 (or 1471 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 130560768 is about 11426.3190923412. The cubic root of 130560768 is about 507.3070511466.

It can be divided in two parts, 130560 and 768, that added together give a triangular number (131328 = T512).

The spelling of 130560768 in words is "one hundred thirty million, five hundred sixty thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 96 104 108 117 128 144 156 192 208 216 234 256 288 312 351 384 416 432 468 576 624 702 768 832 864 936 1152 1248 1404 1453 1664 1728 1872 2304 2496 2808 2906 3328 3456 3744 4359 4992 5616 5812 6912 7488 8718 9984 11232 11624 13077 14976 17436 18889 22464 23248 26154 29952 34872 37778 39231 44928 46496 52308 56667 69744 75556 78462 89856 92992 104616 113334 139488 151112 156924 170001 185984 209232 226668 278976 302224 313848 340002 371968 418464 453336 510003 557952 604448 627696 680004 836928 906672 1020006 1115904 1208896 1255392 1360008 1673856 1813344 2040012 2417792 2510784 2720016 3347712 3626688 4080024 4835584 5021568 5440032 7253376 8160048 10043136 10880064 14506752 16320096 21760128 32640192 43520256 65280384 130560768