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30466819 = 163409457
BaseRepresentation
bin111010000111…
…0001100000011
32010022212121201
41310032030003
530244414234
63005002031
7516651355
oct164161403
963285551
1030466819
111621a199
12a253317
136409606
1440910d5
152a1c314
hex1d0e303

30466819 has 8 divisors (see below), whose sum is σ = 30795920. Its totient is φ = 30139776.

The previous prime is 30466811. The next prime is 30466853. The reversal of 30466819 is 91866403.

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

It is a cyclic number.

It is not a de Polignac number, because 30466819 - 23 = 30466811 is a prime.

It is a super-2 number, since 2×304668192 = 1856454119957522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30466811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66439 + ... + 66895.

It is an arithmetic number, because the mean of its divisors is an integer number (3849490).

Almost surely, 230466819 is an apocalyptic number.

30466819 is a deficient number, since it is larger than the sum of its proper divisors (329101).

30466819 is a wasteful number, since it uses less digits than its factorization.

30466819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 30466819 is about 5519.6756245272. The cubic root of 30466819 is about 312.3266460393.

The spelling of 30466819 in words is "thirty million, four hundred sixty-six thousand, eight hundred nineteen".

Divisors: 1 163 409 457 66667 74491 186913 30466819