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30030001220 = 22517199834729
BaseRepresentation
bin11011111101111011…
…010111010001000100
32212111211202010022102
4123331323113101010
5443000140014340
621443503051232
72112112540652
oct337573272104
985454663272
1030030001220
111181017542a
1259a0ba0b18
132aa766a7bb
14164c417dd2
15bab5a3215
hex6fded7444

30030001220 has 96 divisors (see below), whose sum is σ = 70373318400. Its totient is φ = 10697232384.

The previous prime is 30030001217. The next prime is 30030001247. The reversal of 30030001220 is 2210003003.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6347816 + ... + 6352544.

It is an arithmetic number, because the mean of its divisors is an integer number (733055400).

Almost surely, 230030001220 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 30030001220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35186659200).

30030001220 is an abundant number, since it is smaller than the sum of its proper divisors (40343317180).

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

30030001220 is a wasteful number, since it uses less digits than its factorization.

30030001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5757 (or 5755 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 30030001220 its reverse (2210003003), we get a palindrome (32240004223).

The spelling of 30030001220 in words is "thirty billion, thirty million, one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 19 20 34 38 68 76 85 95 170 190 323 340 380 646 983 1292 1615 1966 3230 3932 4729 4915 6460 9458 9830 16711 18677 18916 19660 23645 33422 37354 47290 66844 74708 80393 83555 89851 93385 94580 160786 167110 179702 186770 317509 321572 334220 359404 373540 401965 449255 635018 803930 898510 1270036 1527467 1587545 1607860 1797020 3054934 3175090 4648607 6109868 6350180 7637335 9297214 15274670 18594428 23243035 30549340 46486070 79026319 88323533 92972140 158052638 176647066 316105276 353294132 395131595 441617665 790263190 883235330 1501500061 1580526380 1766470660 3003000122 6006000244 7507500305 15015000610 30030001220