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30080000 = 2105447
BaseRepresentation
bin111001010111…
…1110000000000
32002121020000002
41302233300000
530200030000
62552415132
7513450536
oct162576000
962536002
1030080000
1115a85605
12a0a74a8
136302522
143dd0156
1529928d5
hex1cafc00

30080000 has 110 divisors (see below), whose sum is σ = 76737936. Its totient is φ = 11776000.

The previous prime is 30079999. The next prime is 30080009. The reversal of 30080000 is 8003.

Adding to 30080000 its reverse (8003), we get a palindrome (30088003).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30080009) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 639977 + ... + 640023.

Almost surely, 230080000 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 30080000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38368968).

30080000 is an abundant number, since it is smaller than the sum of its proper divisors (46657936).

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

30080000 is an frugal number, since it uses more digits than its factorization.

30080000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 30080000 is about 5484.5236803208. The cubic root of 30080000 is about 310.9992038937. Note that the first 3 decimals are identical.

The spelling of 30080000 in words is "thirty million, eighty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 47 50 64 80 94 100 125 128 160 188 200 235 250 256 320 376 400 470 500 512 625 640 752 800 940 1000 1024 1175 1250 1280 1504 1600 1880 2000 2350 2500 2560 3008 3200 3760 4000 4700 5000 5120 5875 6016 6400 7520 8000 9400 10000 11750 12032 12800 15040 16000 18800 20000 23500 24064 25600 29375 30080 32000 37600 40000 47000 48128 58750 60160 64000 75200 80000 94000 117500 120320 128000 150400 160000 188000 235000 240640 300800 320000 376000 470000 601600 640000 752000 940000 1203200 1504000 1880000 3008000 3760000 6016000 7520000 15040000 30080000