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20112030300 = 223522310727241
BaseRepresentation
bin10010101110110001…
…010011101001011100
31220220122022222221010
4102232301103221130
5312142134432200
613123410335220
71311252302565
oct225661235134
956818288833
1020112030300
11859079804a
123a9358a510
131b8697115b
14d8b12916c
157ca9ea150
hex4aec53a5c

20112030300 has 144 divisors (see below), whose sum is σ = 61290577152. Its totient is φ = 5081894400.

The previous prime is 20112030299. The next prime is 20112030373. The reversal of 20112030300 is 303021102.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 724680 + ... + 751920.

It is an arithmetic number, because the mean of its divisors is an integer number (425629008).

Almost surely, 220112030300 is an apocalyptic number.

20112030300 is a gapful number since it is divisible by the number (20) 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 20112030300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30645288576).

20112030300 is an abundant number, since it is smaller than the sum of its proper divisors (41178546852).

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

20112030300 is a wasteful number, since it uses less digits than its factorization.

20112030300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27388 (or 27381 counting only the distinct ones).

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

Adding to 20112030300 its reverse (303021102), we get a palindrome (20415051402).

The spelling of 20112030300 in words is "twenty billion, one hundred twelve million, thirty thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 25 30 46 50 60 69 75 92 100 107 115 138 150 214 230 276 300 321 345 428 460 535 575 642 690 1070 1150 1284 1380 1605 1725 2140 2300 2461 2675 3210 3450 4922 5350 6420 6900 7383 8025 9844 10700 12305 14766 16050 24610 27241 29532 32100 36915 49220 54482 61525 73830 81723 108964 123050 136205 147660 163446 184575 246100 272410 326892 369150 408615 544820 626543 681025 738300 817230 1253086 1362050 1634460 1879629 2043075 2506172 2724100 2914787 3132715 3759258 4086150 5829574 6265430 7518516 8172300 8744361 9398145 11659148 12530860 14573935 15663575 17488722 18796290 29147870 31327150 34977444 37592580 43721805 46990725 58295740 62654300 67040101 72869675 87443610 93981450 134080202 145739350 174887220 187962900 201120303 218609025 268160404 291478700 335200505 402240606 437218050 670401010 804481212 874436100 1005601515 1340802020 1676002525 2011203030 3352005050 4022406060 5028007575 6704010100 10056015150 20112030300