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213113120 = 25511196373
BaseRepresentation
bin11001011001111…
…01100100100000
3112212000021020112
430230331210200
5414024104440
633051430452
75165301023
oct1454754440
9485007215
10213113120
11aa32a050
125b455428
13351c8b4c
14204371ba
1513a99965
hexcb3d920

213113120 has 96 divisors (see below), whose sum is σ = 578249280. Its totient is φ = 73405440.

The previous prime is 213113111. The next prime is 213113137. The reversal of 213113120 is 21311312.

213113120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2131131202 = 90834403832268800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213113095 and 213113104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30254 + ... + 36626.

It is an arithmetic number, because the mean of its divisors is an integer number (6023430).

Almost surely, 2213113120 is an apocalyptic number.

213113120 is a gapful number since it is divisible by the number (20) 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 213113120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289124640).

213113120 is an abundant number, since it is smaller than the sum of its proper divisors (365136160).

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

213113120 is a wasteful number, since it uses less digits than its factorization.

213113120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6418 (or 6410 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 213113120 is about 14598.3944322655. The cubic root of 213113120 is about 597.3149652001.

Adding to 213113120 its reverse (21311312), we get a palindrome (234424432).

It can be divided in two parts, 2131 and 13120, that added together give a palindrome (15251).

The spelling of 213113120 in words is "two hundred thirteen million, one hundred thirteen thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 19 20 22 32 38 40 44 55 76 80 88 95 110 152 160 176 190 209 220 304 352 380 418 440 608 760 836 880 1045 1520 1672 1760 2090 3040 3344 4180 6373 6688 8360 12746 16720 25492 31865 33440 50984 63730 70103 101968 121087 127460 140206 203936 242174 254920 280412 350515 484348 509840 560824 605435 701030 968696 1019680 1121648 1210870 1331957 1402060 1937392 2243296 2421740 2663914 2804120 3874784 4843480 5327828 5608240 6659785 9686960 10655656 11216480 13319570 19373920 21311312 26639140 42622624 53278280 106556560 213113120