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102111010010 = 25379225111969
BaseRepresentation
bin101111100011001001…
…0100101110011011010
3100202120021212202120122
41133012102211303122
53133110404310020
6114524213153242
710243256156432
oct1370622456332
9322507782518
10102111010010
113a33a004179
121795892b822
139823c83aa9
144d295752c2
1529c9729125
hex17c64a5cda

102111010010 has 32 divisors (see below), whose sum is σ = 184382049600. Its totient is φ = 40715136000.

The previous prime is 102111009997. The next prime is 102111010031. The reversal of 102111010010 is 10010111201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102111010010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8525306 + ... + 8537274.

It is an arithmetic number, because the mean of its divisors is an integer number (5761939050).

Almost surely, 2102111010010 is an apocalyptic number.

102111010010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102111010010 is a deficient number, since it is larger than the sum of its proper divisors (82271039590).

102111010010 is a wasteful number, since it uses less digits than its factorization.

102111010010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14606.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 102111010010 its reverse (10010111201), we get a palindrome (112121121211).

The spelling of 102111010010 in words is "one hundred two billion, one hundred eleven million, ten thousand, ten".

Divisors: 1 2 5 10 379 758 1895 2251 3790 4502 11255 11969 22510 23938 59845 119690 853129 1706258 4265645 4536251 8531290 9072502 22681255 26942219 45362510 53884438 134711095 269422190 10211101001 20422202002 51055505005 102111010010