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30213100000 = 2555431701
BaseRepresentation
bin11100001000110101…
…110101000111100000
32212222121021111121201
4130020311311013200
5443334023200000
621514003330544
72116465053436
oct341065650740
985877244551
1030213100000
11118a4564236
125a32380a54
132b06587c85
14166887ad56
15bbc6be96a
hex708d751e0

30213100000 has 144 divisors (see below), whose sum is σ = 74626598592. Its totient is φ = 12040000000.

The previous prime is 30213099979. The next prime is 30213100013. The reversal of 30213100000 is 131203.

It is a super-2 number, since 2×302131000002 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 30213100000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43099650 + ... + 43100350.

It is an arithmetic number, because the mean of its divisors is an integer number (518240268).

Almost surely, 230213100000 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 30213100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37313299296).

30213100000 is an abundant number, since it is smaller than the sum of its proper divisors (44413498592).

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

30213100000 is an frugal number, since it uses more digits than its factorization.

30213100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 30213100000 its reverse (131203), we get a palindrome (30213231203).

The spelling of 30213100000 in words is "thirty billion, two hundred thirteen million, one hundred thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 431 500 625 701 800 862 1000 1250 1402 1724 2000 2155 2500 2804 3125 3448 3505 4000 4310 5000 5608 6250 6896 7010 8620 10000 10775 11216 12500 13792 14020 17240 17525 20000 21550 22432 25000 28040 34480 35050 43100 50000 53875 56080 68960 70100 86200 87625 100000 107750 112160 140200 172400 175250 215500 269375 280400 302131 344800 350500 431000 438125 538750 560800 604262 701000 862000 876250 1077500 1208524 1346875 1402000 1510655 1724000 1752500 2155000 2190625 2417048 2693750 2804000 3021310 3505000 4310000 4381250 4834096 5387500 6042620 7010000 7553275 8620000 8762500 9668192 10775000 12085240 14020000 15106550 17525000 21550000 24170480 30213100 35050000 37766375 43100000 48340960 60426200 70100000 75532750 120852400 151065500 188831875 241704800 302131000 377663750 604262000 755327500 944159375 1208524000 1510655000 1888318750 3021310000 3776637500 6042620000 7553275000 15106550000 30213100000