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232021422 = 2343147983
BaseRepresentation
bin11011101010001…
…01110110101110
3121011120220120000
431311011312232
5433344141142
635005005130
75515102203
oct1565056656
9534526500
10232021422
11109a74146
12658537a6
13390b93a9
1422b59caa
151558214c
hexdd45dae

232021422 has 80 divisors (see below), whose sum is σ = 548646912. Its totient is φ = 73178640.

The previous prime is 232021417. The next prime is 232021451. The reversal of 232021422 is 224120232.

It is a super-3 number, since 3×2320214223 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 232021395 and 232021404.

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 235543 + ... + 236525.

Almost surely, 2232021422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232021422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274323456).

232021422 is an abundant number, since it is smaller than the sum of its proper divisors (316625490).

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

232021422 is a wasteful number, since it uses less digits than its factorization.

232021422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 232021422 is about 15232.2494070968. The cubic root of 232021422 is about 614.4822769606.

Adding to 232021422 its reverse (224120232), we get a palindrome (456141654).

The spelling of 232021422 in words is "two hundred thirty-two million, twenty-one thousand, four hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 31 47 54 62 81 93 94 141 162 186 279 282 423 558 837 846 983 1269 1457 1674 1966 2511 2538 2914 2949 3807 4371 5022 5898 7614 8742 8847 13113 17694 26226 26541 30473 39339 46201 53082 60946 78678 79623 91419 92402 118017 138603 159246 182838 236034 274257 277206 415809 548514 822771 831618 1247427 1432231 1645542 2468313 2494854 2864462 3742281 4296693 4936626 7484562 8593386 12890079 25780158 38670237 77340474 116010711 232021422