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30883075213 is a prime number
BaseRepresentation
bin11100110000110001…
…100101010010001101
32221201021221202211111
4130300301211102031
51001222031401323
622104255252021
72142211544104
oct346061452215
987637852744
1030883075213
1112108766561
125b9a81a011
132bb2314003
1416cd83b03b
15c0b410c0d
hex730c6548d

30883075213 has 2 divisors, whose sum is σ = 30883075214. Its totient is φ = 30883075212.

The previous prime is 30883075187. The next prime is 30883075231. The reversal of 30883075213 is 31257038803.

Together with next prime (30883075231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29178789124 + 1704286089 = 170818^2 + 41283^2 .

It is an emirp because it is prime and its reverse (31257038803) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30883075213 is a prime.

It is a super-2 number, since 2×308830752132 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30883075253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15441537606 + 15441537607.

It is an arithmetic number, because the mean of its divisors is an integer number (15441537607).

Almost surely, 230883075213 is an apocalyptic number.

It is an amenable number.

30883075213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30883075213 is an equidigital number, since it uses as much as digits as its factorization.

30883075213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 30883075213 in words is "thirty billion, eight hundred eighty-three million, seventy-five thousand, two hundred thirteen".