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30683828 = 2271095851
BaseRepresentation
bin111010100001…
…1001010110100
32010201220022002
41311003022310
530323340303
63013354432
7521544140
oct165031264
963656262
1030683828
111635823a
12a338a18
136484316
14410a220
152a61788
hex1d432b4

30683828 has 12 divisors (see below), whose sum is σ = 61367712. Its totient is φ = 13150200.

The previous prime is 30683813. The next prime is 30683843. The reversal of 30683828 is 82838603.

It is an interprime number because it is at equal distance from previous prime (30683813) and next prime (30683843).

30683828 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 30683791 and 30683800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547898 + ... + 547953.

It is an arithmetic number, because the mean of its divisors is an integer number (5113976).

Almost surely, 230683828 is an apocalyptic number.

It is an amenable number.

30683828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30683828 is a wasteful number, since it uses less digits than its factorization.

30683828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095862 (or 1095860 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 30683828 is about 5539.2985115446. The cubic root of 30683828 is about 313.0664388900.

The spelling of 30683828 in words is "thirty million, six hundred eighty-three thousand, eight hundred twenty-eight".

Divisors: 1 2 4 7 14 28 1095851 2191702 4383404 7670957 15341914 30683828