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30212122300 = 225219157101281
BaseRepresentation
bin11100001000110010…
…000110011010111100
32212222112102211110121
4130020302012122330
5443333300403200
621513530344324
72116453542133
oct341062063274
985875384417
1030212122300
11118a3a56718
125a31b8b0a4
132b06304c59
1416686a491a
15bbc579e1a
hex708c866bc

30212122300 has 72 divisors (see below), whose sum is σ = 69451093040. Its totient is φ = 11375769600.

The previous prime is 30212122289. The next prime is 30212122337. The reversal of 30212122300 is 322121203.

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, 247660 + ... + 348940.

Almost surely, 230212122300 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 30212122300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34725546520).

30212122300 is an abundant number, since it is smaller than the sum of its proper divisors (39238970740).

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

30212122300 is a wasteful number, since it uses less digits than its factorization.

30212122300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101471 (or 101464 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 30212122300 its reverse (322121203), we get a palindrome (30534243503).

The spelling of 30212122300 in words is "thirty billion, two hundred twelve million, one hundred twenty-two thousand, three hundred".

Divisors: 1 2 4 5 10 19 20 25 38 50 76 95 100 157 190 314 380 475 628 785 950 1570 1900 2983 3140 3925 5966 7850 11932 14915 15700 29830 59660 74575 101281 149150 202562 298300 405124 506405 1012810 1924339 2025620 2532025 3848678 5064050 7697356 9621695 10128100 15901117 19243390 31802234 38486780 48108475 63604468 79505585 96216950 159011170 192433900 302121223 318022340 397527925 604242446 795055850 1208484892 1510606115 1590111700 3021212230 6042424460 7553030575 15106061150 30212122300