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211323112 = 237112132399
BaseRepresentation
bin11001001100010…
…00100011101000
3112201122022210221
430212020203220
5413044314422
632545215424
75144134240
oct1446104350
9481568727
10211323112
11a9317200
125a931574
1334a20180
14200ccb20
15138443c7
hexc9888e8

211323112 has 96 divisors (see below), whose sum is σ = 536256000. Its totient is φ = 75968640.

The previous prime is 211323109. The next prime is 211323121.

211323112 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86889 + ... + 89287.

It is an arithmetic number, because the mean of its divisors is an integer number (5586000).

Almost surely, 2211323112 is an apocalyptic number.

211323112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211323112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268128000).

211323112 is an abundant number, since it is smaller than the sum of its proper divisors (324932888).

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

211323112 is a wasteful number, since it uses less digits than its factorization.

211323112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447 (or 2432 counting only the distinct ones).

The product of its digits is 72, while the sum is 16.

The square root of 211323112 is about 14536.9567654307. The cubic root of 211323112 is about 595.6379119811.

It can be divided in two parts, 211 and 323112, that added together give a palindrome (323323).

The spelling of 211323112 in words is "two hundred eleven million, three hundred twenty-three thousand, one hundred twelve".

Divisors: 1 2 4 7 8 11 13 14 22 26 28 44 52 56 77 88 91 104 121 143 154 182 242 286 308 364 484 572 616 728 847 968 1001 1144 1573 1694 2002 2399 3146 3388 4004 4798 6292 6776 8008 9596 11011 12584 16793 19192 22022 26389 31187 33586 44044 52778 62374 67172 88088 105556 124748 134344 184723 211112 218309 249496 290279 343057 369446 436618 580558 686114 738892 873236 1161116 1372228 1477784 1746472 2031953 2322232 2401399 2744456 3773627 4063906 4802798 7547254 8127812 9605596 15094508 16255624 19211192 26415389 30189016 52830778 105661556 211323112