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30076481 is a prime number
BaseRepresentation
bin111001010111…
…0111001000001
32002121001011202
41302232321001
530144421411
62552350545
7513434351
oct162567101
962531152
1030076481
1115a829a6
12a0a5455
136300a46
143dccb61
15299183b
hex1caee41

30076481 has 2 divisors, whose sum is σ = 30076482. Its totient is φ = 30076480.

The previous prime is 30076469. The next prime is 30076507. The reversal of 30076481 is 18467003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19219456 + 10857025 = 4384^2 + 3295^2 .

It is an emirp because it is prime and its reverse (18467003) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30076481 is a prime.

It is a super-2 number, since 2×300764812 = 1809189418686722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30076441) 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 as a sum of consecutive naturals, namely, 15038240 + 15038241.

It is an arithmetic number, because the mean of its divisors is an integer number (15038241).

Almost surely, 230076481 is an apocalyptic number.

It is an amenable number.

30076481 is a deficient number, since it is larger than the sum of its proper divisors (1).

30076481 is an equidigital number, since it uses as much as digits as its factorization.

30076481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 30076481 is about 5484.2028591218. The cubic root of 30076481 is about 310.9870756925.

The spelling of 30076481 in words is "thirty million, seventy-six thousand, four hundred eighty-one".