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30133406 = 2131115013
BaseRepresentation
bin111001011110…
…0110010011110
32002200221021002
41302330302132
530203232111
62553510302
7514062332
oct162746236
962627232
1030133406
1116011746
12a112392
136320924
1440057c2
1529a363b
hex1cbcc9e

30133406 has 8 divisors (see below), whose sum is σ = 45545544. Its totient is φ = 14951560.

The previous prime is 30133403. The next prime is 30133421. The reversal of 30133406 is 60433103.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30133403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57245 + ... + 57768.

It is an arithmetic number, because the mean of its divisors is an integer number (5693193).

Almost surely, 230133406 is an apocalyptic number.

30133406 is a deficient number, since it is larger than the sum of its proper divisors (15412138).

30133406 is a wasteful number, since it uses less digits than its factorization.

30133406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115146.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 30133406 is about 5489.3903122296. The cubic root of 30133406 is about 311.1831511839.

Adding to 30133406 its reverse (60433103), we get a palindrome (90566509).

The spelling of 30133406 in words is "thirty million, one hundred thirty-three thousand, four hundred six".

Divisors: 1 2 131 262 115013 230026 15066703 30133406