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30826800 = 2432528563
BaseRepresentation
bin111010110011…
…0000100110000
32011000011102100
41311212010300
530342424200
63020420400
7523011024
oct165460460
964004370
1030826800
11164456a4
12a3a7700
136504414
144146384
152a8dd00
hex1d66130

30826800 has 90 divisors (see below), whose sum is σ = 106990052. Its totient is φ = 8219520.

The previous prime is 30826799. The next prime is 30826811. The reversal of 30826800 is 862803.

It is a tau number, because it is divible by the number of its divisors (90).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 682 + ... + 7881.

Almost surely, 230826800 is an apocalyptic number.

30826800 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30826800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53495026).

30826800 is an abundant number, since it is smaller than the sum of its proper divisors (76163252).

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

30826800 is a wasteful number, since it uses less digits than its factorization.

30826800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8587 (or 8573 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 30826800 is about 5552.1887575982. The cubic root of 30826800 is about 313.5519323627.

It can be divided in two parts, 30826 and 800, that added together give a triangular number (31626 = T251).

The spelling of 30826800 in words is "thirty million, eight hundred twenty-six thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 36 40 45 48 50 60 72 75 80 90 100 120 144 150 180 200 225 240 300 360 400 450 600 720 900 1200 1800 3600 8563 17126 25689 34252 42815 51378 68504 77067 85630 102756 128445 137008 154134 171260 205512 214075 256890 308268 342520 385335 411024 428150 513780 616536 642225 685040 770670 856300 1027560 1233072 1284450 1541340 1712600 1926675 2055120 2568900 3082680 3425200 3853350 5137800 6165360 7706700 10275600 15413400 30826800