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30038999 is a prime number
BaseRepresentation
bin111001010010…
…1101111010111
32002112010202112
41302211233113
530142221444
62551501235
7513220154
oct162455727
962463675
1030038999
1115a57821
12a08781b
1362b9973
143dbd22b
15298569e
hex1ca5bd7

30038999 has 2 divisors, whose sum is σ = 30039000. Its totient is φ = 30038998.

The previous prime is 30038959. The next prime is 30039001. The reversal of 30038999 is 99983003.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30038999 - 224 = 13261783 is a prime.

Together with 30039001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30038959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15019499 + 15019500.

It is an arithmetic number, because the mean of its divisors is an integer number (15019500).

Almost surely, 230038999 is an apocalyptic number.

30038999 is a deficient number, since it is larger than the sum of its proper divisors (1).

30038999 is an equidigital number, since it uses as much as digits as its factorization.

30038999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 30038999 is about 5480.7845241352. The cubic root of 30038999 is about 310.8578355830.

The spelling of 30038999 in words is "thirty million, thirty-eight thousand, nine hundred ninety-nine".