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30830833 = 1123313931
BaseRepresentation
bin111010110011…
…1000011110001
32011000100221201
41311213003301
530343041313
63020451201
7523025545
oct165470361
964010851
1030830833
1116448730
12a3a9b01
1365061c7
144147a25
152a900dd
hex1d670f1

30830833 has 16 divisors (see below), whose sum is σ = 36237312. Its totient is φ = 25938000.

The previous prime is 30830831. The next prime is 30830837. The reversal of 30830833 is 33803803.

It is not a de Polignac number, because 30830833 - 21 = 30830831 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30830831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5878 + ... + 9808.

It is an arithmetic number, because the mean of its divisors is an integer number (2264832).

Almost surely, 230830833 is an apocalyptic number.

It is an amenable number.

30830833 is a deficient number, since it is larger than the sum of its proper divisors (5406479).

30830833 is a wasteful number, since it uses less digits than its factorization.

30830833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3996.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 30830833 is about 5552.5519358219. The cubic root of 30830833 is about 313.5656055280.

The spelling of 30830833 in words is "thirty million, eight hundred thirty thousand, eight hundred thirty-three".

Divisors: 1 11 23 31 253 341 713 3931 7843 43241 90413 121861 994543 1340471 2802803 30830833