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30682469 is a prime number
BaseRepresentation
bin111010100001…
…0110101100101
32010201211102202
41311002311211
530323314334
63013344245
7521540156
oct165026545
963654382
1030682469
1116357214
12a338085
13648380c
14410992d
152a6117e
hex1d42d65

30682469 has 2 divisors, whose sum is σ = 30682470. Its totient is φ = 30682468.

The previous prime is 30682453. The next prime is 30682481. The reversal of 30682469 is 96428603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29757025 + 925444 = 5455^2 + 962^2 .

It is an emirp because it is prime and its reverse (96428603) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30682469 - 24 = 30682453 is a prime.

It is a super-2 number, since 2×306824692 = 1882827807871922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30682439) 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, 15341234 + 15341235.

It is an arithmetic number, because the mean of its divisors is an integer number (15341235).

Almost surely, 230682469 is an apocalyptic number.

It is an amenable number.

30682469 is a deficient number, since it is larger than the sum of its proper divisors (1).

30682469 is an equidigital number, since it uses as much as digits as its factorization.

30682469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 30682469 is about 5539.1758412240. The cubic root of 30682469 is about 313.0618168725.

The spelling of 30682469 in words is "thirty million, six hundred eighty-two thousand, four hundred sixty-nine".