Search a number
-
+
30020224020 = 22356127729611
BaseRepresentation
bin11011111101010110…
…000100010000010100
32212111011100101111220
4123331112010100110
5442440134132040
621442513330340
72111633460003
oct337526042024
985434311456
1030020224020
11118056a76a6
1259998669b0
132aa5626487
14164add0c3a
15baa7c12d0
hex6fd584414

30020224020 has 96 divisors (see below), whose sum is σ = 85745928576. Its totient is φ = 7845465600.

The previous prime is 30020224007. The next prime is 30020224033. The reversal of 30020224020 is 2042202003.

It is an interprime number because it is at equal distance from previous prime (30020224007) and next prime (30020224033).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 999015 + ... + 1028625.

It is an arithmetic number, because the mean of its divisors is an integer number (893186756).

Almost surely, 230020224020 is an apocalyptic number.

30020224020 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 30020224020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42872964288).

30020224020 is an abundant number, since it is smaller than the sum of its proper divisors (55725704556).

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

30020224020 is a wasteful number, since it uses less digits than its factorization.

30020224020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29961 (or 29959 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

Adding to 30020224020 its reverse (2042202003), we get a palindrome (32062426023).

The spelling of 30020224020 in words is "thirty billion, twenty million, two hundred twenty-four thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 61 122 183 244 277 305 366 554 610 732 831 915 1108 1220 1385 1662 1830 2770 3324 3660 4155 5540 8310 16620 16897 29611 33794 50691 59222 67588 84485 88833 101382 118444 148055 168970 177666 202764 253455 296110 337940 355332 444165 506910 592220 888330 1013820 1776660 1806271 3612542 5418813 7225084 8202247 9031355 10837626 16404494 18062710 21675252 24606741 27094065 32808988 36125420 41011235 49213482 54188130 82022470 98426964 108376260 123033705 164044940 246067410 492134820 500337067 1000674134 1501011201 2001348268 2501685335 3002022402 5003370670 6004044804 7505056005 10006741340 15010112010 30020224020