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30208000 = 2125359
BaseRepresentation
bin111001100111…
…1000000000000
32002211201120211
41303033000000
530213124000
62555243504
7514522654
oct163170000
962751524
1030208000
1116062799
12a149594
136348874
144024a64
1529ba7ba
hex1ccf000

30208000 has 104 divisors (see below), whose sum is σ = 76667760. Its totient is φ = 11878400.

The previous prime is 30207979. The next prime is 30208033. The reversal of 30208000 is 80203.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511971 + ... + 512029.

It is an arithmetic number, because the mean of its divisors is an integer number (737190).

Almost surely, 230208000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30208000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38333880).

30208000 is an abundant number, since it is smaller than the sum of its proper divisors (46459760).

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

30208000 is an frugal number, since it uses more digits than its factorization.

30208000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 30208000 is about 5496.1804919417. The cubic root of 30208000 is about 311.4397132699.

Adding to 30208000 its reverse (80203), we get a palindrome (30288203).

The spelling of 30208000 in words is "thirty million, two hundred eight thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 59 64 80 100 118 125 128 160 200 236 250 256 295 320 400 472 500 512 590 640 800 944 1000 1024 1180 1280 1475 1600 1888 2000 2048 2360 2560 2950 3200 3776 4000 4096 4720 5120 5900 6400 7375 7552 8000 9440 10240 11800 12800 14750 15104 16000 18880 20480 23600 25600 29500 30208 32000 37760 47200 51200 59000 60416 64000 75520 94400 102400 118000 120832 128000 151040 188800 236000 241664 256000 302080 377600 472000 512000 604160 755200 944000 1208320 1510400 1888000 3020800 3776000 6041600 7552000 15104000 30208000