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30133630 = 257334111
BaseRepresentation
bin111001011110…
…0110101111110
32002200221120101
41302330311332
530203234010
62553511314
7514063102
oct162746576
962627511
1030133630
111601192a
12a11253a
136320a67
144005902
1529a373a
hex1cbcd7e

30133630 has 16 divisors (see below), whose sum is σ = 54327744. Its totient is φ = 12034080.

The previous prime is 30133619. The next prime is 30133633. The reversal of 30133630 is 3633103.

It is a junction number, because it is equal to n+sod(n) for n = 30133598 and 30133607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30133633) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5275 + ... + 9385.

It is an arithmetic number, because the mean of its divisors is an integer number (3395484).

Almost surely, 230133630 is an apocalyptic number.

30133630 is a deficient number, since it is larger than the sum of its proper divisors (24194114).

30133630 is a wasteful number, since it uses less digits than its factorization.

30133630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4851.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 30133630 is about 5489.4107151861. The cubic root of 30133630 is about 311.1839222534.

Adding to 30133630 its reverse (3633103), we get a palindrome (33766733).

The spelling of 30133630 in words is "thirty million, one hundred thirty-three thousand, six hundred thirty".

Divisors: 1 2 5 10 733 1466 3665 4111 7330 8222 20555 41110 3013363 6026726 15066815 30133630