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30313069 is a prime number
BaseRepresentation
bin111001110100…
…0101001101101
32010001001201021
41303220221231
530230004234
63001414141
7515441203
oct163505155
963031637
1030313069
1116124726
12a19a351
136384637
144051073
1529db9b4
hex1ce8a6d

30313069 has 2 divisors, whose sum is σ = 30313070. Its totient is φ = 30313068.

The previous prime is 30313043. The next prime is 30313081. The reversal of 30313069 is 96031303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24383844 + 5929225 = 4938^2 + 2435^2 .

It is an emirp because it is prime and its reverse (96031303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30313069 - 215 = 30280301 is a prime.

It is a super-2 number, since 2×303130692 = 1837764304397522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30313039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15156534 + 15156535.

It is an arithmetic number, because the mean of its divisors is an integer number (15156535).

Almost surely, 230313069 is an apocalyptic number.

It is an amenable number.

30313069 is a deficient number, since it is larger than the sum of its proper divisors (1).

30313069 is an equidigital number, since it uses as much as digits as its factorization.

30313069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 30313069 is about 5505.7305600619. The cubic root of 30313069 is about 311.8003770443.

The spelling of 30313069 in words is "thirty million, three hundred thirteen thousand, sixty-nine".