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30012406 = 239737799
BaseRepresentation
bin111001001111…
…1001111110110
32002110210021121
41302133033312
530140344111
62551134154
7513046504
oct162371766
962423247
1030012406
1115a39846
12a07435a
1362aa828
143db3674
15297c871
hex1c9f3f6

30012406 has 8 divisors (see below), whose sum is σ = 45133200. Its totient is φ = 14968008.

The previous prime is 30012397. The next prime is 30012431. The reversal of 30012406 is 60421003.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30012406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18106 + ... + 19693.

It is an arithmetic number, because the mean of its divisors is an integer number (5641650).

Almost surely, 230012406 is an apocalyptic number.

30012406 is a deficient number, since it is larger than the sum of its proper divisors (15120794).

30012406 is a wasteful number, since it uses less digits than its factorization.

30012406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38198.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 30012406 is about 5478.3579656682. The cubic root of 30012406 is about 310.7660761665.

Adding to 30012406 its reverse (60421003), we get a palindrome (90433409).

The spelling of 30012406 in words is "thirty million, twelve thousand, four hundred six".

Divisors: 1 2 397 794 37799 75598 15006203 30012406