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30033842 = 228153441
BaseRepresentation
bin111001010010…
…0011110110010
32002111212200112
41302210132302
530142040332
62551421322
7513166136
oct162443662
962455615
1030033842
1115a53963
12a084842
1362b7507
143dbb3c6
152983db2
hex1ca47b2

30033842 has 8 divisors (see below), whose sum is σ = 45211932. Its totient is φ = 14963200.

The previous prime is 30033833. The next prime is 30033859. The reversal of 30033842 is 24833003.

It can be written as a sum of positive squares in 2 ways, for example, as 29170801 + 863041 = 5401^2 + 929^2 .

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

It is an unprimeable number.

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, 26159 + ... + 27282.

Almost surely, 230033842 is an apocalyptic number.

30033842 is a deficient number, since it is larger than the sum of its proper divisors (15178090).

30033842 is a wasteful number, since it uses less digits than its factorization.

30033842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53724.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 30033842 is about 5480.3140420965. The cubic root of 30033842 is about 310.8400455361.

Adding to 30033842 its reverse (24833003), we get a palindrome (54866845).

The spelling of 30033842 in words is "thirty million, thirty-three thousand, eight hundred forty-two".

Divisors: 1 2 281 562 53441 106882 15016921 30033842