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30149201 is a prime number
BaseRepresentation
bin111001100000…
…0101001010001
32002201201221002
41303000221101
530204233301
62554111345
7514156355
oct163005121
962651832
1030149201
11160225a5
12a11b555
136327b84
14400b465
1529a816b
hex1cc0a51

30149201 has 2 divisors, whose sum is σ = 30149202. Its totient is φ = 30149200.

The previous prime is 30149167. The next prime is 30149221. The reversal of 30149201 is 10294103.

It is an a-pointer prime, because the next prime (30149221) can be obtained adding 30149201 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29149201 + 1000000 = 5399^2 + 1000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30149201 is a prime.

It is not a weakly prime, because it can be changed into another prime (30149221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15074600 + 15074601.

It is an arithmetic number, because the mean of its divisors is an integer number (15074601).

Almost surely, 230149201 is an apocalyptic number.

It is an amenable number.

30149201 is a deficient number, since it is larger than the sum of its proper divisors (1).

30149201 is an equidigital number, since it uses as much as digits as its factorization.

30149201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 30149201 is about 5490.8288081127. The cubic root of 30149201 is about 311.2375125499.

The spelling of 30149201 in words is "thirty million, one hundred forty-nine thousand, two hundred one".