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303130049 is a prime number
BaseRepresentation
bin10010000100010…
…110010111000001
3210010101121020212
4102010112113001
51110100130144
650025043505
710340364035
oct2204262701
9703347225
10303130049
11146122102
1285626595
134aa556c1
142c38a1c5
151b92b49e
hex121165c1

303130049 has 2 divisors, whose sum is σ = 303130050. Its totient is φ = 303130048.

The previous prime is 303130039. The next prime is 303130067. The reversal of 303130049 is 940031303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165302449 + 137827600 = 12857^2 + 11740^2 .

It is a cyclic number.

It is not a de Polignac number, because 303130049 - 24 = 303130033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (303130039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151565024 + 151565025.

It is an arithmetic number, because the mean of its divisors is an integer number (151565025).

Almost surely, 2303130049 is an apocalyptic number.

It is an amenable number.

303130049 is a deficient number, since it is larger than the sum of its proper divisors (1).

303130049 is an equidigital number, since it uses as much as digits as its factorization.

303130049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 303130049 is about 17410.6303447061. The cubic root of 303130049 is about 671.7530751723.

The spelling of 303130049 in words is "three hundred three million, one hundred thirty thousand, forty-nine".