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28303008253325 = 5213239397917827
BaseRepresentation
bin1100110111101110011101…
…10000001100010110001101
310201012202000022100001000222
412123313032300030112031
512202204030103101300
6140110120020401125
75650552633502411
oct633671660142615
9121182008301028
1028303008253325
119022269334843
1232113902461a5
1312a3c6801a840
146dbc31392d41
1534135d62e785
hex19bdcec0c58d

28303008253325 has 48 divisors (see below), whose sum is σ = 38049183863040. Its totient is φ = 20760783563520.

The previous prime is 28303008253319. The next prime is 28303008253343. The reversal of 28303008253325 is 52335280030382.

It is a happy number.

It is not a de Polignac number, because 28303008253325 - 226 = 28302941144461 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30378062 + ... + 31295888.

It is an arithmetic number, because the mean of its divisors is an integer number (792691330480).

Almost surely, 228303008253325 is an apocalyptic number.

28303008253325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28303008253325 is a deficient number, since it is larger than the sum of its proper divisors (9746175609715).

28303008253325 is a wasteful number, since it uses less digits than its factorization.

28303008253325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918486 (or 918481 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 28303008253325 in words is "twenty-eight trillion, three hundred three billion, eight million, two hundred fifty-three thousand, three hundred twenty-five".

Divisors: 1 5 13 25 65 239 325 397 1195 1985 3107 5161 5975 9925 15535 25805 77675 94883 129025 474415 917827 1233479 2372075 4589135 6167395 11931751 22945675 30836975 59658755 219360653 298293775 364377319 1096803265 1821886595 2851688489 4736905147 5484016325 9109432975 14258442445 23684525735 71292212225 87086179241 118422628675 435430896205 1132120330133 2177154481025 5660601650665 28303008253325