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30340519 = 1123119923
BaseRepresentation
bin111001110111…
…1010110100111
32010002110100221
41303233112213
530231344034
63002145211
7515614216
oct163572647
963073327
1030340519
1116143310
12a1b2207
136393c91
14405b07d
1529e4bb4
hex1cef5a7

30340519 has 8 divisors (see below), whose sum is σ = 34538112. Its totient is φ = 26382840.

The previous prime is 30340507. The next prime is 30340543. The reversal of 30340519 is 91504303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30340519 - 29 = 30340007 is a prime.

It is a super-2 number, since 2×303405192 = 1841094186378722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30340493 and 30340502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30340559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59709 + ... + 60214.

It is an arithmetic number, because the mean of its divisors is an integer number (4317264).

Almost surely, 230340519 is an apocalyptic number.

30340519 is a deficient number, since it is larger than the sum of its proper divisors (4197593).

30340519 is a wasteful number, since it uses less digits than its factorization.

30340519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119957.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 30340519 is about 5508.2228531533. Note that the first 3 decimals coincide. The cubic root of 30340519 is about 311.8944655944.

The spelling of 30340519 in words is "thirty million, three hundred forty thousand, five hundred nineteen".

Divisors: 1 11 23 253 119923 1319153 2758229 30340519