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30538027 = 132349079
BaseRepresentation
bin111010001111…
…1100100101011
32010110111022001
41310133210223
530304204102
63010311431
7520366102
oct164374453
963414261
1030538027
1116268743
12a288577
136432b50
1440ad039
152a33487
hex1d1f92b

30538027 has 4 divisors (see below), whose sum is σ = 32887120. Its totient is φ = 28188936.

The previous prime is 30538009. The next prime is 30538033. The reversal of 30538027 is 72083503.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30538027 - 211 = 30535979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30537986 and 30538004.

It is not an unprimeable number, because it can be changed into a prime (30538037) 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, 1174527 + ... + 1174552.

It is an arithmetic number, because the mean of its divisors is an integer number (8221780).

Almost surely, 230538027 is an apocalyptic number.

30538027 is a deficient number, since it is larger than the sum of its proper divisors (2349093).

30538027 is a wasteful number, since it uses less digits than its factorization.

30538027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349092.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 30538027 is about 5526.1222389665. The cubic root of 30538027 is about 312.5697832425.

The spelling of 30538027 in words is "thirty million, five hundred thirty-eight thousand, twenty-seven".

Divisors: 1 13 2349079 30538027