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30853028 = 22172319727
BaseRepresentation
bin111010110110…
…0011110100100
32011001111101202
41311230132210
530344244103
63021142032
7523150343
oct165543644
964044352
1030853028
1116463378
12a3ba918
13651333b
144151b5a
152a96988
hex1d6c7a4

30853028 has 24 divisors (see below), whose sum is σ = 59657472. Its totient is φ = 13887104.

The previous prime is 30853027. The next prime is 30853057. The reversal of 30853028 is 82035803.

It is not an unprimeable number, because it can be changed into a prime (30853021) 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, 8300 + ... + 11427.

It is an arithmetic number, because the mean of its divisors is an integer number (2485728).

Almost surely, 230853028 is an apocalyptic number.

It is an amenable number.

30853028 is a deficient number, since it is larger than the sum of its proper divisors (28804444).

30853028 is a wasteful number, since it uses less digits than its factorization.

30853028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19771 (or 19769 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 30853028 is about 5554.5502068124. The cubic root of 30853028 is about 313.6408323767.

The spelling of 30853028 in words is "thirty million, eight hundred fifty-three thousand, twenty-eight".

Divisors: 1 2 4 17 23 34 46 68 92 391 782 1564 19727 39454 78908 335359 453721 670718 907442 1341436 1814884 7713257 15426514 30853028