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30120330120 = 23351291119441
BaseRepresentation
bin11100000011010011…
…111100001110001000
32212202010201022021020
4130003103330032020
5443141301030440
621500451112440
72114260403346
oct340323741610
985663638236
1030120330120
1111857160911
125a072a2720
132ac02a635a
14165a40c996
15bb44973d0
hex7034fc388

30120330120 has 64 divisors (see below), whose sum is σ = 90372637440. Its totient is φ = 8031052800.

The previous prime is 30120330113. The next prime is 30120330131. The reversal of 30120330120 is 2103302103.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30120330120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1539600 + ... + 1559040.

It is an arithmetic number, because the mean of its divisors is an integer number (1412072460).

Almost surely, 230120330120 is an apocalyptic number.

30120330120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30120330120 is an abundant number, since it is smaller than the sum of its proper divisors (60252307320).

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

30120330120 is a wasteful number, since it uses less digits than its factorization.

30120330120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32366 (or 32362 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30120330120 its reverse (2103302103), we get a palindrome (32223632223).

The spelling of 30120330120 in words is "thirty billion, one hundred twenty million, three hundred thirty thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 12911 19441 25822 38733 38882 51644 58323 64555 77466 77764 97205 103288 116646 129110 154932 155528 193665 194410 233292 258220 291615 309864 387330 388820 466584 516440 583230 774660 777640 1166460 1549320 2332920 251002751 502005502 753008253 1004011004 1255013755 1506016506 2008022008 2510027510 3012033012 3765041265 5020055020 6024066024 7530082530 10040110040 15060165060 30120330120