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30380387 is a prime number
BaseRepresentation
bin111001111100…
…1000101100011
32010011111001112
41303321011203
530234133022
63003053535
7516141362
oct163710543
963144045
1030380387
1116170264
12a2112ab
1363a917b
14406b7d9
152a018e2
hex1cf9163

30380387 has 2 divisors, whose sum is σ = 30380388. Its totient is φ = 30380386.

The previous prime is 30380381. The next prime is 30380393. The reversal of 30380387 is 78308303.

It is a balanced prime because it is at equal distance from previous prime (30380381) and next prime (30380393).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30380387 is a prime.

It is not a weakly prime, because it can be changed into another prime (30380381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15190193 + 15190194.

It is an arithmetic number, because the mean of its divisors is an integer number (15190194).

Almost surely, 230380387 is an apocalyptic number.

30380387 is a deficient number, since it is larger than the sum of its proper divisors (1).

30380387 is an equidigital number, since it uses as much as digits as its factorization.

30380387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 30380387 is about 5511.8406181601. The cubic root of 30380387 is about 312.0310174894.

The spelling of 30380387 in words is "thirty million, three hundred eighty thousand, three hundred eighty-seven".