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30674819 = 77360029
BaseRepresentation
bin111010100000…
…0111110000011
32010201102221102
41311000332003
530323043234
63013245015
7521505650
oct165007603
963642842
1030674819
111635149a
12a33376b
1364801a6
144106c27
152a5dc7e
hex1d40f83

30674819 has 8 divisors (see below), whose sum is σ = 35537760. Its totient is φ = 25932096.

The previous prime is 30674789. The next prime is 30674821. The reversal of 30674819 is 91847603.

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 30674819 - 28 = 30674563 is a prime.

It is a super-2 number, since 2×306748192 = 1881889041365522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30674419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29504 + ... + 30525.

It is an arithmetic number, because the mean of its divisors is an integer number (4442220).

Almost surely, 230674819 is an apocalyptic number.

30674819 is a deficient number, since it is larger than the sum of its proper divisors (4862941).

30674819 is an equidigital number, since it uses as much as digits as its factorization.

30674819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60109.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 30674819 is about 5538.4852622355. The cubic root of 30674819 is about 313.0357963463.

The spelling of 30674819 in words is "thirty million, six hundred seventy-four thousand, eight hundred nineteen".

Divisors: 1 7 73 511 60029 420203 4382117 30674819