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28530063190125 = 325376329572423
BaseRepresentation
bin1100111110010101011000…
…10010000010100001101101
310202000110002011020220200200
412133022230102002201231
512214414032134041000
6140402310255544113
76003141363561240
oct637125422024155
9122013064226620
1028530063190125
1190aa593991442
12324939852b039
1312bc4b1513a53
14708c106d7257
153471ebd8b500
hex19f2ac48286d

28530063190125 has 96 divisors (see below), whose sum is σ = 58786754158080. Its totient is φ = 13040231097600.

The previous prime is 28530063190121. The next prime is 28530063190141. The reversal of 28530063190125 is 52109136003582.

28530063190125 is a `hidden beast` number, since 2 + 8 + 5 + 3 + 0 + 0 + 631 + 9 + 0 + 1 + 2 + 5 = 666.

It is not a de Polignac number, because 28530063190125 - 22 = 28530063190121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28530063190121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 49554664 + ... + 50127086.

It is an arithmetic number, because the mean of its divisors is an integer number (612362022480).

Almost surely, 228530063190125 is an apocalyptic number.

28530063190125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28530063190125 is an abundant number, since it is smaller than the sum of its proper divisors (30256690967955).

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

28530063190125 is a wasteful number, since it uses less digits than its factorization.

28530063190125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578780 (or 578767 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 28530063190125 in words is "twenty-eight trillion, five hundred thirty billion, sixty-three million, one hundred ninety thousand, one hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 35 45 63 75 105 125 175 225 315 375 525 875 1125 1575 2625 6329 7875 18987 31645 44303 56961 94935 132909 158225 221515 284805 398727 474675 572423 664545 791125 1107575 1424025 1717269 1993635 2373375 2862115 3322725 4006961 5151807 5537875 7120125 8586345 9968175 12020883 14310575 16613625 20034805 25759035 36062649 42931725 49840875 60104415 71552875 100174025 128795175 180313245 214658625 300522075 500870125 643975875 901566225 1502610375 3622865167 4507831125 10868595501 18114325835 25360056169 32605786503 54342977505 76080168507 90571629175 126800280845 163028932515 228240505521 271714887525 380400842535 452858145875 634001404225 815144662575 1141202527605 1358574437625 1902004212675 3170007021125 4075723312875 5706012638025 9510021063375 28530063190125