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30844130 = 253084413
BaseRepresentation
bin111010110101…
…0010011100010
32011001001012012
41311222103202
530344003010
63021032522
7523112402
oct165522342
964031165
1030844130
1116457719
12a3b5742
13650c285
14414c802
152a94005
hex1d6a4e2

30844130 has 8 divisors (see below), whose sum is σ = 55519452. Its totient is φ = 12337648.

The previous prime is 30844123. The next prime is 30844147. The reversal of 30844130 is 3144803.

It can be written as a sum of positive squares in 2 ways, for example, as 30658369 + 185761 = 5537^2 + 431^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30844096 and 30844105.

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, 1542197 + ... + 1542216.

Almost surely, 230844130 is an apocalyptic number.

30844130 is a deficient number, since it is larger than the sum of its proper divisors (24675322).

30844130 is a wasteful number, since it uses less digits than its factorization.

30844130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3084420.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 30844130 is about 5553.7491841098. The cubic root of 30844130 is about 313.6106781840.

Adding to 30844130 its reverse (3144803), we get a palindrome (33988933).

The spelling of 30844130 in words is "thirty million, eight hundred forty-four thousand, one hundred thirty".

Divisors: 1 2 5 10 3084413 6168826 15422065 30844130