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30038216 = 2313367787
BaseRepresentation
bin111001010010…
…1100011001000
32002112002200112
41302211203020
530142210331
62551453452
7513214655
oct162454310
962462615
1030038216
1115a5717a
12a087288
1362b94c0
143dbcc2c
15298532b
hex1ca58c8

30038216 has 32 divisors (see below), whose sum is σ = 60896640. Its totient is φ = 13808448.

The previous prime is 30038189. The next prime is 30038231. The reversal of 30038216 is 61283003.

It is a junction number, because it is equal to n+sod(n) for n = 30038191 and 30038200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37775 + ... + 38561.

It is an arithmetic number, because the mean of its divisors is an integer number (1903020).

Almost surely, 230038216 is an apocalyptic number.

It is an amenable number.

30038216 is an abundant number, since it is smaller than the sum of its proper divisors (30858424).

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

30038216 is a wasteful number, since it uses less digits than its factorization.

30038216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173 (or 1169 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 30038216 is about 5480.7130922901. The cubic root of 30038216 is about 310.8551346075.

The spelling of 30038216 in words is "thirty million, thirty-eight thousand, two hundred sixteen".

Divisors: 1 2 4 8 13 26 52 104 367 734 787 1468 1574 2936 3148 4771 6296 9542 10231 19084 20462 38168 40924 81848 288829 577658 1155316 2310632 3754777 7509554 15019108 30038216