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100231111112 = 23116591728361
BaseRepresentation
bin101110101011000111…
…1010110000111001000
3100120201021112000002112
41131112033112013020
53120233131023422
6114013500321452
710145551246556
oct1352617260710
9316637460075
10100231111112
1139564938320
1217513243288
1395b466a692
144bcba20bd6
15291968bee2
hex17563d61c8

100231111112 has 32 divisors (see below), whose sum is σ = 205329405600. Its totient is φ = 45490435200.

The previous prime is 100231111081. The next prime is 100231111133. The reversal of 100231111112 is 211111132001.

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 7 ways as a sum of consecutive naturals, for example, 806189 + ... + 922172.

It is an arithmetic number, because the mean of its divisors is an integer number (6416543925).

Almost surely, 2100231111112 is an apocalyptic number.

It is an amenable number.

100231111112 is an abundant number, since it is smaller than the sum of its proper divisors (105098294488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100231111112 is a wasteful number, since it uses less digits than its factorization.

100231111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729037 (or 1729033 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 100231111112 its reverse (211111132001), we get a palindrome (311342243113).

The spelling of 100231111112 in words is "one hundred billion, two hundred thirty-one million, one hundred eleven thousand, one hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 659 1318 2636 5272 7249 14498 28996 57992 1728361 3456722 6913444 13826888 19011971 38023942 76047884 152095768 1138989899 2277979798 4555959596 9111919192 12528888889 25057777778 50115555556 100231111112