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30101212 = 227995257
BaseRepresentation
bin111001011010…
…0111011011100
32002122022002201
41302310323130
530201214322
62553101244
7513566431
oct162647334
962568081
1030101212
1115a9a539
12a0b7824
13630c08b
143dd7b88
152998d27
hex1cb4edc

30101212 has 12 divisors (see below), whose sum is σ = 53344480. Its totient is φ = 14859936.

The previous prime is 30101189. The next prime is 30101221. The reversal of 30101212 is 21210103.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47313 + ... + 47944.

Almost surely, 230101212 is an apocalyptic number.

It is an amenable number.

30101212 is a deficient number, since it is larger than the sum of its proper divisors (23243268).

30101212 is a wasteful number, since it uses less digits than its factorization.

30101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95340 (or 95338 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 30101212 is about 5486.4571446426. The cubic root of 30101212 is about 311.0722908289.

Adding to 30101212 its reverse (21210103), we get a palindrome (51311315).

The spelling of 30101212 in words is "thirty million, one hundred one thousand, two hundred twelve".