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130725578752 = 21163830849
BaseRepresentation
bin111100110111111011…
…0100000100000000000
3110111102111020110112221
41321233312200200000
54120211222010002
6140015434500424
712305334041206
oct1715766404000
9414374213487
10130725578752
11504931aa19a
1221403894714
13c4342cb682
1464819c1076
1536018d9c37
hex1e6fda0800

130725578752 has 24 divisors (see below), whose sum is σ = 261387330750. Its totient is φ = 65362788352.

The previous prime is 130725578663. The next prime is 130725578783. The reversal of 130725578752 is 257875527031.

It can be written as a sum of positive squares in only one way, i.e., 79352636416 + 51372942336 = 281696^2 + 226656^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 130725578752.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31913377 + ... + 31917472.

Almost surely, 2130725578752 is an apocalyptic number.

It is an amenable number.

130725578752 is a deficient number, since it is larger than the sum of its proper divisors (130661751998).

130725578752 is an frugal number, since it uses more digits than its factorization.

130725578752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63830871 (or 63830851 counting only the distinct ones).

The product of its (nonzero) digits is 4116000, while the sum is 52.

The spelling of 130725578752 in words is "one hundred thirty billion, seven hundred twenty-five million, five hundred seventy-eight thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 16 32 64 128 256 512 1024 2048 63830849 127661698 255323396 510646792 1021293584 2042587168 4085174336 8170348672 16340697344 32681394688 65362789376 130725578752