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30349833 = 327773643
BaseRepresentation
bin111001111000…
…1101000001001
32010002221010220
41303301220021
530232143313
63002300253
7515653323
oct163615011
963087126
1030349833
111614a308
12a1b7689
1363982a7
144060613
1529e7823
hex1cf1a09

30349833 has 8 divisors (see below), whose sum is σ = 40492128. Its totient is φ = 20220384.

The previous prime is 30349831. The next prime is 30349841. The reversal of 30349833 is 33894303.

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

It is not a de Polignac number, because 30349833 - 21 = 30349831 is a prime.

It is a super-2 number, since 2×303498332 = 1842224726255778, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30349794 and 30349803.

It is not an unprimeable number, because it can be changed into a prime (30349831) 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, 6510 + ... + 10152.

It is an arithmetic number, because the mean of its divisors is an integer number (5061516).

Almost surely, 230349833 is an apocalyptic number.

It is an amenable number.

30349833 is a deficient number, since it is larger than the sum of its proper divisors (10142295).

30349833 is a wasteful number, since it uses less digits than its factorization.

30349833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6423.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 30349833 is about 5509.0682515286. The cubic root of 30349833 is about 311.9263776814.

The spelling of 30349833 in words is "thirty million, three hundred forty-nine thousand, eight hundred thirty-three".

Divisors: 1 3 2777 3643 8331 10929 10116611 30349833