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216233165042 = 21571097627749
BaseRepresentation
bin1100100101100010000…
…0000100000011110010
3202200010122211220121022
43021120200010003302
512020321142240132
6243200335055442
721423313401536
oct3113040040362
9680118756538
10216233165042
1183781a91384
1235aa8071582
13175104a218b
14a673dc9bc6
155958675e12
hex32588040f2

216233165042 has 16 divisors (see below), whose sum is σ = 326713743000. Its totient is φ = 107329842048.

The previous prime is 216233165017. The next prime is 216233165047. The reversal of 216233165042 is 240561332612.

It can be written as a sum of positive squares in 4 ways, for example, as 136064339161 + 80168825881 = 368869^2 + 283141^2 .

It is a junction number, because it is equal to n+sod(n) for n = 216233164993 and 216233165011.

It is not an unprimeable number, because it can be changed into a prime (216233165047) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 30584 + ... + 658332.

Almost surely, 2216233165042 is an apocalyptic number.

216233165042 is a deficient number, since it is larger than the sum of its proper divisors (110480577958).

216233165042 is a wasteful number, since it uses less digits than its factorization.

216233165042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629005.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 216233165042 its reverse (240561332612), we get a palindrome (456794497654).

The spelling of 216233165042 in words is "two hundred sixteen billion, two hundred thirty-three million, one hundred sixty-five thousand, forty-two".

Divisors: 1 2 157 314 1097 2194 172229 344458 627749 1255498 98556593 197113186 688640653 1377281306 108116582521 216233165042