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30854128 = 241928383
BaseRepresentation
bin111010110110…
…0101111110000
32011001112220111
41311230233300
530344313003
63021151104
7523153504
oct165545760
964045814
1030854128
1116464188
12a3bb494
1365139a6
144152304
152a96e6d
hex1d6cbf0

30854128 has 10 divisors (see below), whose sum is σ = 59779904. Its totient is φ = 15427056.

The previous prime is 30854123. The next prime is 30854147. The reversal of 30854128 is 82145803.

It is a self number, because there is not a number n which added to its sum of digits gives 30854128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30854123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 964176 + ... + 964207.

Almost surely, 230854128 is an apocalyptic number.

It is an amenable number.

30854128 is a deficient number, since it is larger than the sum of its proper divisors (28925776).

30854128 is a wasteful number, since it uses less digits than its factorization.

30854128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928391 (or 1928385 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 30854128 is about 5554.6492238484. The cubic root of 30854128 is about 313.6445597344.

The spelling of 30854128 in words is "thirty million, eight hundred fifty-four thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 16 1928383 3856766 7713532 15427064 30854128