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30133415 = 513538747
BaseRepresentation
bin111001011110…
…0110010100111
32002200221021102
41302330302213
530203232130
62553510315
7514062344
oct162746247
962627242
1030133415
1116011754
12a11239b
136320930
1440057cb
1529a3645
hex1cbcca7

30133415 has 16 divisors (see below), whose sum is σ = 39680928. Its totient is φ = 21830016.

The previous prime is 30133403. The next prime is 30133421. The reversal of 30133415 is 51433103.

It is a happy number.

It is not a de Polignac number, because 30133415 - 210 = 30132391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 929 + ... + 7818.

It is an arithmetic number, because the mean of its divisors is an integer number (2480058).

Almost surely, 230133415 is an apocalyptic number.

30133415 is a deficient number, since it is larger than the sum of its proper divisors (9547513).

30133415 is a wasteful number, since it uses less digits than its factorization.

30133415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8818.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 30133415 is about 5489.3911319927. The cubic root of 30133415 is about 311.1831821644.

Adding to 30133415 its reverse (51433103), we get a palindrome (81566518).

The spelling of 30133415 in words is "thirty million, one hundred thirty-three thousand, four hundred fifteen".

Divisors: 1 5 13 53 65 265 689 3445 8747 43735 113711 463591 568555 2317955 6026683 30133415