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30853764 = 22332312421
BaseRepresentation
bin111010110110…
…0101010000100
32011001112102000
41311230222010
530344310024
63021145300
7523152444
oct165545204
964045360
1030853764
1116463987
12a3bb230
136513786
144152124
152a96cc9
hex1d6ca84

30853764 has 48 divisors (see below), whose sum is σ = 83475840. Its totient is φ = 9836640.

The previous prime is 30853729. The next prime is 30853769. The reversal of 30853764 is 46735803.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30853769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3727 + ... + 8694.

It is an arithmetic number, because the mean of its divisors is an integer number (1739080).

Almost surely, 230853764 is an apocalyptic number.

It is an amenable number.

30853764 is an abundant number, since it is smaller than the sum of its proper divisors (52622076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30853764 is a wasteful number, since it uses less digits than its factorization.

30853764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12457 (or 12449 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 30853764 is about 5554.6164584065. The cubic root of 30853764 is about 313.6433263276.

The spelling of 30853764 in words is "thirty million, eight hundred fifty-three thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 18 23 27 36 46 54 69 92 108 138 207 276 414 621 828 1242 2484 12421 24842 37263 49684 74526 111789 149052 223578 285683 335367 447156 571366 670734 857049 1142732 1341468 1714098 2571147 3428196 5142294 7713441 10284588 15426882 30853764