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130028754025 = 5241217592
BaseRepresentation
bin111100100011001010…
…0010101010001101001
3110102121221001002201201
41321012110111101221
54112244330112100
6135422343244201
712252143113222
oct1710624252151
9412557032651
10130028754025
1150165929495
122124a449661
13c352b31651
146417232249
1535b064336a
hex1e46515469

130028754025 has 27 divisors (see below), whose sum is σ = 165358155333. Its totient is φ = 101428161600.

The previous prime is 130028754017. The next prime is 130028754049. The reversal of 130028754025 is 520457820031.

The square root of 130028754025 is 360595.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 54731198809 + 75297555216 = 233947^2 + 274404^2 .

It is not a de Polignac number, because 130028754025 - 23 = 130028754017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 73921096 + ... + 73922854.

Almost surely, 2130028754025 is an apocalyptic number.

130028754025 is the 360595-th square number.

130028754025 is the 180298-th centered octagonal number.

It is an amenable number.

130028754025 is a deficient number, since it is larger than the sum of its proper divisors (35329401308).

130028754025 is an frugal number, since it uses more digits than its factorization.

130028754025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3610 (or 1805 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 130028754025 in words is "one hundred thirty billion, twenty-eight million, seven hundred fifty-four thousand, twenty-five".

Divisors: 1 5 25 41 205 1025 1681 1759 8405 8795 42025 43975 72119 360595 1802975 2956879 3094081 14784395 15470405 73921975 77352025 126857321 634286605 3171433025 5201150161 26005750805 130028754025