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30838342 = 257726723
BaseRepresentation
bin111010110100…
…0111001000110
32011000202020211
41311220321012
530343311332
63020550034
7523056463
oct165507106
964022224
1030838342
1116453337
12a3b231a
136509752
14414a66a
152a92447
hex1d68e46

30838342 has 8 divisors (see below), whose sum is σ = 46339416. Its totient is φ = 15391872.

The previous prime is 30838307. The next prime is 30838343. The reversal of 30838342 is 24383803.

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 (30838343) by changing a digit.

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, 12208 + ... + 14515.

It is an arithmetic number, because the mean of its divisors is an integer number (5792427).

Almost surely, 230838342 is an apocalyptic number.

30838342 is a deficient number, since it is larger than the sum of its proper divisors (15501074).

30838342 is a wasteful number, since it uses less digits than its factorization.

30838342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27302.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 30838342 is about 5553.2280702309. The cubic root of 30838342 is about 313.5910602733.

The spelling of 30838342 in words is "thirty million, eight hundred thirty-eight thousand, three hundred forty-two".

Divisors: 1 2 577 1154 26723 53446 15419171 30838342