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30022111 = 74288873
BaseRepresentation
bin111001010000…
…1100111011111
32002111021121001
41302201213133
530141201421
62551251131
7513120010
oct162414737
962437531
1030022111
1115a46069
12a079aa7
1362b2082
143db7007
152980691
hex1ca19df

30022111 has 4 divisors (see below), whose sum is σ = 34310992. Its totient is φ = 25733232.

The previous prime is 30022087. The next prime is 30022117. The reversal of 30022111 is 11122003.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 30022111 - 221 = 27924959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30022117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2144430 + ... + 2144443.

It is an arithmetic number, because the mean of its divisors is an integer number (8577748).

Almost surely, 230022111 is an apocalyptic number.

30022111 is a deficient number, since it is larger than the sum of its proper divisors (4288881).

30022111 is an equidigital number, since it uses as much as digits as its factorization.

30022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4288880.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 30022111 is about 5479.2436521841. The cubic root of 30022111 is about 310.7995696463.

Adding to 30022111 its reverse (11122003), we get a palindrome (41144114).

The spelling of 30022111 in words is "thirty million, twenty-two thousand, one hundred eleven".

Divisors: 1 7 4288873 30022111