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30944030 = 2513238031
BaseRepresentation
bin111011000001…
…0101100011110
32011020010020012
41312002230132
530410202110
63023123222
7524006555
oct166025436
964203205
1030944030
1116515787
12a443512
1365458a0
144176d9c
152ab3905
hex1d82b1e

30944030 has 16 divisors (see below), whose sum is σ = 59984064. Its totient is φ = 11425440.

The previous prime is 30944021. The next prime is 30944051. The reversal of 30944030 is 3044903.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30943987 and 30944005.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 118886 + ... + 119145.

It is an arithmetic number, because the mean of its divisors is an integer number (3749004).

Almost surely, 230944030 is an apocalyptic number.

30944030 is a deficient number, since it is larger than the sum of its proper divisors (29040034).

30944030 is a wasteful number, since it uses less digits than its factorization.

30944030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238051.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 30944030 is about 5562.7358376971. The cubic root of 30944030 is about 313.9488942750.

Adding to 30944030 its reverse (3044903), we get a palindrome (33988933).

The spelling of 30944030 in words is "thirty million, nine hundred forty-four thousand, thirty".

Divisors: 1 2 5 10 13 26 65 130 238031 476062 1190155 2380310 3094403 6188806 15472015 30944030