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30251158213 is a prime number
BaseRepresentation
bin11100001011000111…
…000000101011000101
32220002020220001200011
4130023013000223011
5443423244030323
621521443150221
72120436413353
oct341307005305
986066801604
1030251158213
1111913a98a01
125a43075371
132b11421a23
14166d9467d3
15bc0bdb20d
hex70b1c0ac5

30251158213 has 2 divisors, whose sum is σ = 30251158214. Its totient is φ = 30251158212.

The previous prime is 30251158211. The next prime is 30251158243. The reversal of 30251158213 is 31285115203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26244648004 + 4006510209 = 162002^2 + 63297^2 .

It is a cyclic number.

It is not a de Polignac number, because 30251158213 - 21 = 30251158211 is a prime.

Together with 30251158211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30251158211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15125579106 + 15125579107.

It is an arithmetic number, because the mean of its divisors is an integer number (15125579107).

Almost surely, 230251158213 is an apocalyptic number.

It is an amenable number.

30251158213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30251158213 is an equidigital number, since it uses as much as digits as its factorization.

30251158213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 30251158213 in words is "thirty billion, two hundred fifty-one million, one hundred fifty-eight thousand, two hundred thirteen".