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30440066 = 288717159
BaseRepresentation
bin111010000011…
…1101010000010
32010021111220212
41310013222002
530243040231
63004234122
7516510356
oct164075202
963244825
1030440066
1116201088
12a23b942
1363ca397
144085466
152a1442b
hex1d07a82

30440066 has 8 divisors (see below), whose sum is σ = 45714240. Its totient is φ = 15201988.

The previous prime is 30440041. The next prime is 30440083. The reversal of 30440066 is 66004403.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6806 + ... + 10353.

It is an arithmetic number, because the mean of its divisors is an integer number (5714280).

Almost surely, 230440066 is an apocalyptic number.

30440066 is a deficient number, since it is larger than the sum of its proper divisors (15274174).

30440066 is a wasteful number, since it uses less digits than its factorization.

30440066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18048.

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

The square root of 30440066 is about 5517.2516708956. The cubic root of 30440066 is about 312.2352009641.

Adding to 30440066 its reverse (66004403), we get a palindrome (96444469).

The spelling of 30440066 in words is "thirty million, four hundred forty thousand, sixty-six".

Divisors: 1 2 887 1774 17159 34318 15220033 30440066