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30834211 = 112327457
BaseRepresentation
bin111010110011…
…1111000100011
32011000112120211
41311213320203
530343143321
63020514551
7523041442
oct165477043
964015524
1030834211
1116450221
12a3aba57
1365078c5
144148d59
152a910e1
hex1d67e23

30834211 has 4 divisors (see below), whose sum is σ = 30862792. Its totient is φ = 30805632.

The previous prime is 30834187. The next prime is 30834217. The reversal of 30834211 is 11243803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11243803 = 23488861.

It is a cyclic number.

It is not a de Polignac number, because 30834211 - 215 = 30801443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30834217) 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, 12606 + ... + 14851.

It is an arithmetic number, because the mean of its divisors is an integer number (7715698).

Almost surely, 230834211 is an apocalyptic number.

30834211 is a deficient number, since it is larger than the sum of its proper divisors (28581).

30834211 is a wasteful number, since it uses less digits than its factorization.

30834211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28580.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 30834211 is about 5552.8561119482. The cubic root of 30834211 is about 313.5770571154.

The spelling of 30834211 in words is "thirty million, eight hundred thirty-four thousand, two hundred eleven".

Divisors: 1 1123 27457 30834211