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30034312 = 2371148757
BaseRepresentation
bin111001010010…
…0100110001000
32002111220022221
41302210212020
530142044222
62551423424
7513200410
oct162444610
962456287
1030034312
1115a54250
12a084b74
1362b77a9
143dbb640
1529840c7
hex1ca4988

30034312 has 32 divisors (see below), whose sum is σ = 70211520. Its totient is φ = 11701440.

The previous prime is 30034283. The next prime is 30034313. The reversal of 30034312 is 21343003.

It is not an unprimeable number, because it can be changed into a prime (30034313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23763 + ... + 24994.

It is an arithmetic number, because the mean of its divisors is an integer number (2194110).

Almost surely, 230034312 is an apocalyptic number.

It is an amenable number.

30034312 is an abundant number, since it is smaller than the sum of its proper divisors (40177208).

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

30034312 is a wasteful number, since it uses less digits than its factorization.

30034312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48781 (or 48777 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30034312 is about 5480.3569226830. The cubic root of 30034312 is about 310.8416669743.

Adding to 30034312 its reverse (21343003), we get a palindrome (51377315).

The spelling of 30034312 in words is "thirty million, thirty-four thousand, three hundred twelve".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 48757 97514 195028 341299 390056 536327 682598 1072654 1365196 2145308 2730392 3754289 4290616 7508578 15017156 30034312