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30213243212 = 2259733115639
BaseRepresentation
bin11100001000110110…
…011000000101001100
32212222121112210001212
4130020312120011030
5443334042240322
621514010353552
72116466221115
oct341066300514
985877483055
1030213243212
11118a4651899
125a3242b8b8
132b06608209
1416688b720c
15bbc6ec0e2
hex708d9814c

30213243212 has 48 divisors (see below), whose sum is σ = 54690854400. Its totient is φ = 14597458560.

The previous prime is 30213243199. The next prime is 30213243223. The reversal of 30213243212 is 21234231203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5355089 + ... + 5360727.

It is an arithmetic number, because the mean of its divisors is an integer number (1139392800).

Almost surely, 230213243212 is an apocalyptic number.

It is an amenable number.

30213243212 is a deficient number, since it is larger than the sum of its proper divisors (24477611188).

30213243212 is a wasteful number, since it uses less digits than its factorization.

30213243212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086 (or 6084 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30213243212 its reverse (21234231203), we get a palindrome (51447474415).

The spelling of 30213243212 in words is "thirty billion, two hundred thirteen million, two hundred forty-three thousand, two hundred twelve".

Divisors: 1 2 4 59 73 118 146 236 292 311 622 1244 4307 5639 8614 11278 17228 18349 22556 22703 36698 45406 73396 90812 332701 411647 665402 823294 1330804 1339477 1646588 1753729 2678954 3507458 5357908 7014916 24287173 48574346 97148692 103470011 128022217 206940022 256044434 413880044 512088868 7553310803 15106621606 30213243212