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30220131000 = 2335344322739
BaseRepresentation
bin11100001001010000…
…101001101010111000
32220000002111201100010
4130021100221222320
5443342323143000
621514414141520
72116611606123
oct341120515270
986002451303
1030220131000
11118a8526784
125a347b18a0
132b07b7a327
14166978b3ba
15bbd10cd50
hex709429ab8

30220131000 has 128 divisors (see below), whose sum is σ = 94503801600. Its totient is φ = 8040156800.

The previous prime is 30220130987. The next prime is 30220131001. The reversal of 30220131000 is 13102203.

It is a happy number.

It is a super-2 number, since 2×302201310002 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220131001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1317631 + ... + 1340369.

It is an arithmetic number, because the mean of its divisors is an integer number (738310950).

Almost surely, 230220131000 is an apocalyptic number.

30220131000 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 30220131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47251900800).

30220131000 is an abundant number, since it is smaller than the sum of its proper divisors (64283670600).

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

30220131000 is a wasteful number, since it uses less digits than its factorization.

30220131000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23206 (or 23192 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 30220131000 its reverse (13102203), we get a palindrome (30233233203).

The spelling of 30220131000 in words is "thirty billion, two hundred twenty million, one hundred thirty-one thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 125 150 200 250 300 375 443 500 600 750 886 1000 1329 1500 1772 2215 2658 3000 3544 4430 5316 6645 8860 10632 11075 13290 17720 22150 22739 26580 33225 44300 45478 53160 55375 66450 68217 88600 90956 110750 113695 132900 136434 166125 181912 221500 227390 265800 272868 332250 341085 443000 454780 545736 568475 664500 682170 909560 1136950 1329000 1364340 1705425 2273900 2728680 2842375 3410850 4547800 5684750 6821700 8527125 10073377 11369500 13643400 17054250 20146754 22739000 30220131 34108500 40293508 50366885 60440262 68217000 80587016 100733770 120880524 151100655 201467540 241761048 251834425 302201310 402935080 503668850 604402620 755503275 1007337700 1208805240 1259172125 1511006550 2014675400 2518344250 3022013100 3777516375 5036688500 6044026200 7555032750 10073377000 15110065500 30220131000