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102728260679 = 1118774975457
BaseRepresentation
bin101111110101100010…
…1001101110001000111
3100211011022100100022112
41133223011031301013
53140341413320204
6115105343051235
710264462544162
oct1375305156107
9324138310275
10102728260679
113a6264747a0
1217aab5a0b1b
1398c1b0c585
144d8752cad9
152a13a0326e
hex17eb14dc47

102728260679 has 8 divisors (see below), whose sum is σ = 112126921488. Its totient is φ = 93339554560.

The previous prime is 102728260651. The next prime is 102728260711. The reversal of 102728260679 is 976062827201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102728260679 - 224 = 102711483463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102728260619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2467082 + ... + 2508375.

It is an arithmetic number, because the mean of its divisors is an integer number (14015865186).

Almost surely, 2102728260679 is an apocalyptic number.

102728260679 is a deficient number, since it is larger than the sum of its proper divisors (9398660809).

102728260679 is a wasteful number, since it uses less digits than its factorization.

102728260679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4977345.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 102728260679 in words is "one hundred two billion, seven hundred twenty-eight million, two hundred sixty thousand, six hundred seventy-nine".

Divisors: 1 11 1877 20647 4975457 54730027 9338932789 102728260679