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102112005425 = 5219503427381
BaseRepresentation
bin101111100011001011…
…0011000110100110001
3100202120100202100000212
41133012112120310301
53133111133133200
6114524250353505
710243300503503
oct1370626306461
9322510670025
10102112005425
113a33a624031
121795912b895
139824241bb1
144d29753d73
1529c9874035
hex17c6598d31

102112005425 has 24 divisors (see below), whose sum is σ = 133548327360. Its totient is φ = 77236113600.

The previous prime is 102112005353. The next prime is 102112005433. The reversal of 102112005425 is 524500211201.

It is not a de Polignac number, because 102112005425 - 214 = 102111989041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102112005425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25235 + ... + 452615.

It is an arithmetic number, because the mean of its divisors is an integer number (5564513640).

Almost surely, 2102112005425 is an apocalyptic number.

It is an amenable number.

102112005425 is a deficient number, since it is larger than the sum of its proper divisors (31436321935).

102112005425 is a wasteful number, since it uses less digits than its factorization.

102112005425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427913 (or 427908 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 102112005425 its reverse (524500211201), we get a palindrome (626612216626).

The spelling of 102112005425 in words is "one hundred two billion, one hundred twelve million, five thousand, four hundred twenty-five".

Divisors: 1 5 19 25 95 475 503 2515 9557 12575 47785 238925 427381 2136905 8120239 10684525 40601195 203005975 214972643 1074863215 4084480217 5374316075 20422401085 102112005425