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102428807215 = 5729269375149
BaseRepresentation
bin101111101100100111…
…0111001000000101111
3100210101102212112101111
41133121032321000233
53134233233312330
6115015524452451
710254165332050
oct1373116710057
9323342775344
10102428807215
113a492433999
1217a2724a127
139874a73487
144d5985c727
1529e75a132a
hex17d93b902f

102428807215 has 32 divisors (see below), whose sum is σ = 145858320000. Its totient is φ = 67562654208.

The previous prime is 102428807209. The next prime is 102428807227. The reversal of 102428807215 is 512708824201.

It is not a de Polignac number, because 102428807215 - 225 = 102395252783 is a prime.

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, 85461 + ... + 460609.

It is an arithmetic number, because the mean of its divisors is an integer number (4558072500).

Almost surely, 2102428807215 is an apocalyptic number.

102428807215 is a deficient number, since it is larger than the sum of its proper divisors (43429512785).

102428807215 is a wasteful number, since it uses less digits than its factorization.

102428807215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375459.

The product of its (nonzero) digits is 71680, while the sum is 40.

The spelling of 102428807215 in words is "one hundred two billion, four hundred twenty-eight million, eight hundred seven thousand, two hundred fifteen".

Divisors: 1 5 7 29 35 145 203 269 1015 1345 1883 7801 9415 39005 54607 273035 375149 1875745 2626043 10879321 13130215 54396605 76155247 100915081 380776235 504575405 706405567 2926537349 3532027835 14632686745 20485761443 102428807215