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130428167680 = 29550948503
BaseRepresentation
bin111100101111000011…
…1111110011000000000
3110110122202121102021001
41321132013332120000
54114104102331210
6135530132141344
712265063063426
oct1713607763000
9413582542231
10130428167680
1150350333918
1221340167854
13c3b77c90a5
1464542c3116
1535d573d03a
hex1e5e1fe600

130428167680 has 40 divisors (see below), whose sum is σ = 312721917552. Its totient is φ = 52171266048.

The previous prime is 130428167651. The next prime is 130428167699. The reversal of 130428167680 is 86761824031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 130428167680.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25471692 + ... + 25476811.

Almost surely, 2130428167680 is an apocalyptic number.

130428167680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130428167680 is an abundant number, since it is smaller than the sum of its proper divisors (182293749872).

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

130428167680 is an frugal number, since it uses more digits than its factorization.

130428167680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50948526 (or 50948510 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 130428167680 in words is "one hundred thirty billion, four hundred twenty-eight million, one hundred sixty-seven thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 640 1280 2560 50948503 101897006 203794012 254742515 407588024 509485030 815176048 1018970060 1630352096 2037940120 3260704192 4075880240 6521408384 8151760480 13042816768 16303520960 26085633536 32607041920 65214083840 130428167680