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30204823 = 114166973
BaseRepresentation
bin111001100111…
…0001110010111
32002211120020011
41303032032113
530213023243
62555221051
7514510465
oct163161627
962746204
1030204823
1116060370
12a147787
13634729c
144023835
1529b989d
hex1cce397

30204823 has 8 divisors (see below), whose sum is σ = 33754896. Its totient is φ = 26788800.

The previous prime is 30204799. The next prime is 30204827. The reversal of 30204823 is 32840203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30204823 is a prime.

It is a super-2 number, since 2×302048232 = 1824662664922658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30204794 and 30204803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30204827) 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, 33036 + ... + 33937.

It is an arithmetic number, because the mean of its divisors is an integer number (4219362).

Almost surely, 230204823 is an apocalyptic number.

30204823 is a deficient number, since it is larger than the sum of its proper divisors (3550073).

30204823 is a wasteful number, since it uses less digits than its factorization.

30204823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67025.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 30204823 is about 5495.8914654494. The cubic root of 30204823 is about 311.4287947642.

The spelling of 30204823 in words is "thirty million, two hundred four thousand, eight hundred twenty-three".

Divisors: 1 11 41 451 66973 736703 2745893 30204823