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30543253320 = 233517103145361
BaseRepresentation
bin11100011100100001…
…010000111101001000
32220211121112000211110
4130130201100331020
51000023033101240
622010435530320
72130614240526
oct343441207510
986747460743
1030543253320
1111a53963318
125b04a599a0
132b59ab2778
14169a65d316
15bdb687c80
hex71c850f48

30543253320 has 128 divisors (see below), whose sum is σ = 97962359040. Its totient is φ = 7591280640.

The previous prime is 30543253319. The next prime is 30543253343. The reversal of 30543253320 is 2335234503.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137440 + ... + 282800.

It is an arithmetic number, because the mean of its divisors is an integer number (765330930).

Almost surely, 230543253320 is an apocalyptic number.

30543253320 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 30543253320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48981179520).

30543253320 is an abundant number, since it is smaller than the sum of its proper divisors (67419105720).

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

30543253320 is a wasteful number, since it uses less digits than its factorization.

30543253320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145495 (or 145491 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 30.

Adding to 30543253320 its reverse (2335234503), we get a palindrome (32878487823).

The spelling of 30543253320 in words is "thirty billion, five hundred forty-three million, two hundred fifty-three thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 17 20 24 30 34 40 51 60 68 85 102 103 120 136 170 204 206 255 309 340 408 412 510 515 618 680 824 1020 1030 1236 1545 1751 2040 2060 2472 3090 3502 4120 5253 6180 7004 8755 10506 12360 14008 17510 21012 26265 35020 42024 52530 70040 105060 145361 210120 290722 436083 581444 726805 872166 1162888 1453610 1744332 2180415 2471137 2907220 3488664 4360830 4942274 5814440 7413411 8721660 9884548 12355685 14826822 14972183 17443320 19769096 24711370 29653644 29944366 37067055 44916549 49422740 59307288 59888732 74134110 74860915 89833098 98845480 119777464 148268220 149721830 179666196 224582745 254527111 296536440 299443660 359332392 449165490 509054222 598887320 763581333 898330980 1018108444 1272635555 1527162666 1796661960 2036216888 2545271110 3054325332 3817906665 5090542220 6108650664 7635813330 10181084440 15271626660 30543253320