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30320330320 = 2457271919913
BaseRepresentation
bin11100001111001110…
…111000011001010000
32220021002001100222001
4130033032320121100
5444044001032240
621532353523344
72122236361330
oct341716703120
986232040861
1030320330320
111194a043a35
125a62273554
132b22860777
141678bd10c0
15bc6d0189a
hex70f3b8650

30320330320 has 80 divisors (see below), whose sum is σ = 80599127040. Its totient is φ = 10391196672.

The previous prime is 30320330303. The next prime is 30320330351. The reversal of 30320330320 is 2303302303.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×303203303202 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1512684 + ... + 1532596.

It is an arithmetic number, because the mean of its divisors is an integer number (1007489088).

Almost surely, 230320330320 is an apocalyptic number.

It is an amenable number.

30320330320 is an abundant number, since it is smaller than the sum of its proper divisors (50278796720).

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

30320330320 is a wasteful number, since it uses less digits than its factorization.

30320330320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22652 (or 22646 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 19.

Adding to 30320330320 its reverse (2303302303), we get a palindrome (32623632623).

The spelling of 30320330320 in words is "thirty billion, three hundred twenty million, three hundred thirty thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 2719 5438 10876 13595 19033 19913 21752 27190 38066 39826 43504 54380 76132 79652 95165 99565 108760 139391 152264 159304 190330 199130 217520 278782 304528 318608 380660 398260 557564 696955 761320 796520 1115128 1393910 1522640 1593040 2230256 2787820 5575640 11151280 54143447 108286894 216573788 270717235 379004129 433147576 541434470 758008258 866295152 1082868940 1516016516 1895020645 2165737880 3032033032 3790041290 4331475760 6064066064 7580082580 15160165160 30320330320