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30828526 = 219811277
BaseRepresentation
bin111010110011…
…0011111101110
32011000020210021
41311212133232
530343003101
63020432354
7523016041
oct165463756
964006707
1030828526
1116446a23
12a3a86ba
136505141
144146c58
152a8e5a1
hex1d667ee

30828526 has 8 divisors (see below), whose sum is σ = 48676680. Its totient is φ = 14602968.

The previous prime is 30828493. The next prime is 30828527. The reversal of 30828526 is 62582803.

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

It is a junction number, because it is equal to n+sod(n) for n = 30828491 and 30828500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30828527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405601 + ... + 405676.

It is an arithmetic number, because the mean of its divisors is an integer number (6084585).

Almost surely, 230828526 is an apocalyptic number.

30828526 is a deficient number, since it is larger than the sum of its proper divisors (17848154).

30828526 is a wasteful number, since it uses less digits than its factorization.

30828526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811298.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 30828526 is about 5552.3441896194. The cubic root of 30828526 is about 313.5577842030.

The spelling of 30828526 in words is "thirty million, eight hundred twenty-eight thousand, five hundred twenty-six".

Divisors: 1 2 19 38 811277 1622554 15414263 30828526