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30313214280 = 2333571395321
BaseRepresentation
bin11100001110110011…
…101111000101001000
32220020120122211121000
4130032303233011020
5444040140324110
621531541215000
72122122033006
oct341663570510
986216584530
1030313214280
1111946023608
125a5ba01460
132b2123b7ab
141677c9ba76
15bc63981c0
hex70ecef148

30313214280 has 128 divisors (see below), whose sum is σ = 102467462400. Its totient is φ = 7969651200.

The previous prime is 30313214263. The next prime is 30313214293. The reversal of 30313214280 is 8241231303.

30313214280 is a `hidden beast` number, since 30 + 31 + 321 + 4 + 280 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 120981 + ... + 274340.

It is an arithmetic number, because the mean of its divisors is an integer number (800527050).

Almost surely, 230313214280 is an apocalyptic number.

30313214280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30313214280 is an abundant number, since it is smaller than the sum of its proper divisors (72154248120).

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

30313214280 is a wasteful number, since it uses less digits than its factorization.

30313214280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395412 (or 395402 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 30313214280 its reverse (8241231303), we get a palindrome (38554445583).

The spelling of 30313214280 in words is "thirty billion, three hundred thirteen million, two hundred fourteen thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 71 72 90 108 120 135 142 180 213 216 270 284 355 360 426 540 568 639 710 852 1065 1080 1278 1420 1704 1917 2130 2556 2840 3195 3834 4260 5112 6390 7668 8520 9585 12780 15336 19170 25560 38340 76680 395321 790642 1185963 1581284 1976605 2371926 3162568 3557889 3953210 4743852 5929815 7115778 7906420 9487704 10673667 11859630 14231556 15812840 17789445 21347334 23719260 28067791 28463112 35578890 42694668 47438520 53368335 56135582 71157780 84203373 85389336 106736670 112271164 140338955 142315560 168406746 213473340 224542328 252610119 280677910 336813492 421016865 426946680 505220238 561355820 673626984 757830357 842033730 1010440476 1122711640 1263050595 1515660714 1684067460 2020880952 2526101190 3031321428 3368134920 3789151785 5052202380 6062642856 7578303570 10104404760 15156607140 30313214280