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30330232020 = 223251123666013
BaseRepresentation
bin11100001111110100…
…101001110011010100
32220021202200102112200
4130033310221303110
5444104014411040
621533350044500
72122416501264
oct341764516324
986252612480
1030330232020
1111954697260
125a65649730
132b2491966a
14167a24b7a4
15bc7b0a630
hex70fd29cd4

30330232020 has 144 divisors (see below), whose sum is σ = 104729369472. Its totient is φ = 7033086720.

The previous prime is 30330232003. The next prime is 30330232067. The reversal of 30330232020 is 2023203303.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30330231984 and 30330232002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 287467 + ... + 378546.

It is an arithmetic number, because the mean of its divisors is an integer number (727287288).

Almost surely, 230330232020 is an apocalyptic number.

30330232020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30330232020 is an abundant number, since it is smaller than the sum of its proper divisors (74399137452).

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

30330232020 is a wasteful number, since it uses less digits than its factorization.

30330232020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666062 (or 666057 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

Adding to 30330232020 its reverse (2023203303), we get a palindrome (32353435323).

The spelling of 30330232020 in words is "thirty billion, three hundred thirty million, two hundred thirty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 11 12 15 18 20 22 23 30 33 36 44 45 46 55 60 66 69 90 92 99 110 115 132 138 165 180 198 207 220 230 253 276 330 345 396 414 460 495 506 660 690 759 828 990 1012 1035 1265 1380 1518 1980 2070 2277 2530 3036 3795 4140 4554 5060 7590 9108 11385 15180 22770 45540 666013 1332026 1998039 2664052 3330065 3996078 5994117 6660130 7326143 7992156 9990195 11988234 13320260 14652286 15318299 19980390 21978429 23976468 29304572 29970585 30636598 36630715 39960780 43956858 45954897 59941170 61273196 65935287 73261430 76591495 87913716 91909794 109892145 119882340 131870574 137864691 146522860 153182990 168501289 183819588 219784290 229774485 263741148 275729382 306365980 329676435 337002578 439568580 459548970 505503867 551458764 659352870 674005156 689323455 842506445 919097940 1011007734 1318705740 1378646910 1516511601 1685012890 2022015468 2527519335 2757293820 3033023202 3370025780 5055038670 6066046404 7582558005 10110077340 15165116010 30330232020