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30030442 = 2131155017
BaseRepresentation
bin111001010001…
…1101001101010
32002111201000121
41302203221222
530141433232
62551353454
7513153211
oct162435152
962451017
1030030442
1115a51352
12a08288a
1362b5ac0
143dba078
152982d97
hex1ca3a6a

30030442 has 8 divisors (see below), whose sum is σ = 48510756. Its totient is φ = 13860192.

The previous prime is 30030439. The next prime is 30030461. The reversal of 30030442 is 24403003.

It can be written as a sum of positive squares in 2 ways, for example, as 27783441 + 2247001 = 5271^2 + 1499^2 .

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, 577483 + ... + 577534.

Almost surely, 230030442 is an apocalyptic number.

30030442 is a deficient number, since it is larger than the sum of its proper divisors (18480314).

30030442 is a wasteful number, since it uses less digits than its factorization.

30030442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155032.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 30030442 is about 5480.0038321154. The cubic root of 30030442 is about 310.8283154791.

Adding to 30030442 its reverse (24403003), we get a palindrome (54433445).

The spelling of 30030442 in words is "thirty million, thirty thousand, four hundred forty-two".

Divisors: 1 2 13 26 1155017 2310034 15015221 30030442