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10111112112 = 2431272297243
BaseRepresentation
bin10010110101010101…
…10101001110110000
3222002122211201021210
421122222311032300
5131201421041422
64351152120120
7505364014653
oct113252651660
928078751253
1010111112112
114319506202
121b62236040
13c51a21a9a
146bcc0789a
153e2a0a10c
hex25aab53b0

10111112112 has 80 divisors (see below), whose sum is σ = 26444656640. Its totient is φ = 3328770816.

The previous prime is 10111112071. The next prime is 10111112129. The reversal of 10111112112 is 21121111101.

10111112112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1392363 + ... + 1399605.

It is an arithmetic number, because the mean of its divisors is an integer number (330558208).

Almost surely, 210111112112 is an apocalyptic number.

10111112112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10111112112 is an abundant number, since it is smaller than the sum of its proper divisors (16333544528).

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

10111112112 is a wasteful number, since it uses less digits than its factorization.

10111112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7610 (or 7604 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 10111112112 its reverse (21121111101), we get a palindrome (31232223213).

The spelling of 10111112112 in words is "ten billion, one hundred eleven million, one hundred twelve thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 48 127 229 254 381 458 508 687 762 916 1016 1374 1524 1832 2032 2748 3048 3664 5496 6096 7243 10992 14486 21729 28972 29083 43458 57944 58166 86916 87249 115888 116332 173832 174498 232664 347664 348996 465328 697992 919861 1395984 1658647 1839722 2759583 3317294 3679444 4975941 5519166 6634588 7358888 9951882 11038332 13269176 14717776 19903764 22076664 26538352 39807528 44153328 79615056 210648169 421296338 631944507 842592676 1263889014 1685185352 2527778028 3370370704 5055556056 10111112112