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28034075005285 = 5177136712657353
BaseRepresentation
bin1100101111111001100010…
…00101010001000101100101
310200021000211212222112020211
412113330301011101011211
512133302241200132120
6135342402023455421
75622252340554646
oct627746105210545
9120230755875224
1028034075005285
118a29203548068
123189236bb7571
1312847a95934cb
146ccbdc2216cd
1533936d56425a
hex197f31151165

28034075005285 has 32 divisors (see below), whose sum is σ = 36219879171072. Its totient is φ = 20754006927360.

The previous prime is 28034075005259. The next prime is 28034075005333. The reversal of 28034075005285 is 58250057043082.

It is not a de Polignac number, because 28034075005285 - 241 = 25835051749733 is a prime.

It is a super-2 number, since 2×280340750052852 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4113832 + ... + 8543521.

It is an arithmetic number, because the mean of its divisors is an integer number (1131871224096).

Almost surely, 228034075005285 is an apocalyptic number.

It is an amenable number.

28034075005285 is a deficient number, since it is larger than the sum of its proper divisors (8185804165787).

28034075005285 is a wasteful number, since it uses less digits than its factorization.

28034075005285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12657813.

The product of its (nonzero) digits is 2688000, while the sum is 49.

The spelling of 28034075005285 in words is "twenty-eight trillion, thirty-four billion, seventy-five million, five thousand, two hundred eighty-five".

Divisors: 1 5 17 71 85 355 367 1207 1835 6035 6239 26057 31195 130285 442969 2214845 12657353 63286765 215175001 898672063 1075875005 4493360315 4645248551 15277425071 23226242755 76387125355 78969225367 329812647121 394846126835 1649063235605 5606815001057 28034075005285