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30023011 = 44216791
BaseRepresentation
bin111001010000…
…1110101100011
32002111022211101
41302201311203
530141214021
62551255231
7513122434
oct162416543
962438741
1030023011
1115a46807
12a07a517
1362b25c5
143db748b
152980a91
hex1ca1d63

30023011 has 4 divisors (see below), whose sum is σ = 30034224. Its totient is φ = 30011800.

The previous prime is 30022999. The next prime is 30023017. The reversal of 30023011 is 11032003.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 30023011 - 213 = 30014819 is a prime.

It is a super-2 number, since 2×300230112 = 1802762379012242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30023017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026 + ... + 7816.

It is an arithmetic number, because the mean of its divisors is an integer number (7508556).

Almost surely, 230023011 is an apocalyptic number.

30023011 is a deficient number, since it is larger than the sum of its proper divisors (11213).

30023011 is an equidigital number, since it uses as much as digits as its factorization.

30023011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11212.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 30023011 is about 5479.3257796922. The cubic root of 30023011 is about 310.8026753219.

Adding to 30023011 its reverse (11032003), we get a palindrome (41055014).

The spelling of 30023011 in words is "thirty million, twenty-three thousand, eleven".

Divisors: 1 4421 6791 30023011