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213361512 = 233713211463
BaseRepresentation
bin11001011011110…
…10001101101000
3112212110212222020
430231322031220
5414110032022
633101024440
75200354140
oct1455721550
9485425866
10213361512
11aa489731
125b555120
1335284c20
142049d920
1513ae835c
hexcb7a368

213361512 has 128 divisors (see below), whose sum is σ = 661032960. Its totient is φ = 55883520.

The previous prime is 213361493. The next prime is 213361549. The reversal of 213361512 is 215163312.

It is a super-2 number, since 2×2133615122 = 91046269605852288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 460593 + ... + 461055.

It is an arithmetic number, because the mean of its divisors is an integer number (5164320).

Almost surely, 2213361512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213361512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330516480).

213361512 is an abundant number, since it is smaller than the sum of its proper divisors (447671448).

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

213361512 is a wasteful number, since it uses less digits than its factorization.

213361512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703 (or 699 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 213361512 is about 14606.8994656635. The cubic root of 213361512 is about 597.5469400516.

The spelling of 213361512 in words is "two hundred thirteen million, three hundred sixty-one thousand, five hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 13 14 21 24 26 28 39 42 52 56 78 84 91 104 156 168 182 211 273 312 364 422 463 546 633 728 844 926 1092 1266 1389 1477 1688 1852 2184 2532 2743 2778 2954 3241 3704 4431 5064 5486 5556 5908 6019 6482 8229 8862 9723 10972 11112 11816 12038 12964 16458 17724 18057 19201 19446 21944 24076 25928 32916 35448 36114 38402 38892 42133 48152 57603 65832 72228 76804 77784 84266 97693 115206 126399 144456 153608 168532 195386 230412 252798 293079 337064 390772 460824 505596 586158 683851 781544 1011192 1172316 1270009 1367702 2051553 2344632 2540018 2735404 3810027 4103106 5080036 5470808 7620054 8206212 8890063 10160072 15240108 16412424 17780126 26670189 30480216 35560252 53340378 71120504 106680756 213361512