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30023206620 = 223511349130343
BaseRepresentation
bin11011111101100001…
…011100011011011100
32212111100221220212120
4123331201130123130
5442441420102440
621443101302540
72112001021431
oct337541343334
985440856776
1030023206620
1111807354560
12599a864a50
132aa612bc24
14164b569b88
15baabaedd0
hex6fd85c6dc

30023206620 has 96 divisors (see below), whose sum is σ = 91970726400. Its totient is φ = 7257442560.

The previous prime is 30023206613. The next prime is 30023206621. The reversal of 30023206620 is 2660232003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30023206621) 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, 165169 + ... + 295511.

It is an arithmetic number, because the mean of its divisors is an integer number (958028400).

Almost surely, 230023206620 is an apocalyptic number.

30023206620 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 30023206620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45985363200).

30023206620 is an abundant number, since it is smaller than the sum of its proper divisors (61947519780).

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

30023206620 is a wasteful number, since it uses less digits than its factorization.

30023206620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130715 (or 130713 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 30023206620 its reverse (2660232003), we get a palindrome (32683438623).

The spelling of 30023206620 in words is "thirty billion, twenty-three million, two hundred six thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 349 660 698 1047 1396 1745 2094 3490 3839 4188 5235 6980 7678 10470 11517 15356 19195 20940 23034 38390 46068 57585 76780 115170 130343 230340 260686 391029 521372 651715 782058 1303430 1433773 1564116 1955145 2606860 2867546 3910290 4301319 5735092 7168865 7820580 8602638 14337730 17205276 21506595 28675460 43013190 45489707 86026380 90979414 136469121 181958828 227448535 272938242 454897070 500386777 545876484 682345605 909794140 1000773554 1364691210 1501160331 2001547108 2501933885 2729382420 3002320662 5003867770 6004641324 7505801655 10007735540 15011603310 30023206620