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30785027 = 713338297
BaseRepresentation
bin111010101101…
…1111000000011
32010221001010012
41311123320003
530340110102
63015455135
7522445160
oct165337003
963831105
1030785027
1116417279
12a3874ab
1364bb3c0
144135067
152a81752
hex1d5be03

30785027 has 8 divisors (see below), whose sum is σ = 37889376. Its totient is φ = 24357312.

The previous prime is 30784991. The next prime is 30785057. The reversal of 30785027 is 72058703.

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

It is not a de Polignac number, because 30785027 - 28 = 30784771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30784984 and 30785002.

It is not an unprimeable number, because it can be changed into a prime (30785057) 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, 169058 + ... + 169239.

It is an arithmetic number, because the mean of its divisors is an integer number (4736172).

Almost surely, 230785027 is an apocalyptic number.

30785027 is a deficient number, since it is larger than the sum of its proper divisors (7104349).

30785027 is a wasteful number, since it uses less digits than its factorization.

30785027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338317.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 30785027 is about 5548.4256325556. The cubic root of 30785027 is about 313.4102382779.

The spelling of 30785027 in words is "thirty million, seven hundred eighty-five thousand, twenty-seven".

Divisors: 1 7 13 91 338297 2368079 4397861 30785027