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30838308 = 22323111733
BaseRepresentation
bin111010110100…
…0111000100100
32011000202012120
41311220320210
530343311213
63020545540
7523056414
oct165507044
964022176
1030838308
1116453306
12a3b22b0
136509727
14414a644
152a92423
hex1d68e24

30838308 has 24 divisors (see below), whose sum is σ = 75085248. Its totient is φ = 9832416.

The previous prime is 30838307. The next prime is 30838343. The reversal of 30838308 is 80383803.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30838307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55591 + ... + 56142.

It is an arithmetic number, because the mean of its divisors is an integer number (3128552).

Almost surely, 230838308 is an apocalyptic number.

It is an amenable number.

30838308 is an abundant number, since it is smaller than the sum of its proper divisors (44246940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30838308 is a wasteful number, since it uses less digits than its factorization.

30838308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111763 (or 111761 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 30838308 is about 5553.2250089475. The cubic root of 30838308 is about 313.5909450261.

Adding to 30838308 its reverse (80383803), we get a palindrome (111222111).

The spelling of 30838308 in words is "thirty million, eight hundred thirty-eight thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 111733 223466 335199 446932 670398 1340796 2569859 5139718 7709577 10279436 15419154 30838308