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30320012310 = 23571144712613
BaseRepresentation
bin11100001111001101…
…101010110000010110
32220021001110012201220
4130033031222300112
5444043410343220
621532343031210
72122233565230
oct341715526026
986231405656
1030320012310
1111949947015
125a6213b506
132b2277bab3
141678b4b250
15bc6c8c540
hex70f36ac16

30320012310 has 64 divisors (see below), whose sum is σ = 83177321472. Its totient is φ = 6929133696.

The previous prime is 30320012293. The next prime is 30320012323. The reversal of 30320012310 is 1321002303.

It is a super-2 number, since 2×303200123102 (a number of 22 digits) contains 22 as substring.

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 30320012310.

It is a congruent number.

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, 2397564 + ... + 2410176.

It is an arithmetic number, because the mean of its divisors is an integer number (1299645648).

Almost surely, 230320012310 is an apocalyptic number.

30320012310 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30320012310 is an abundant number, since it is smaller than the sum of its proper divisors (52857309162).

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

30320012310 is a wasteful number, since it uses less digits than its factorization.

30320012310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24077.

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

Adding to 30320012310 its reverse (1321002303), we get a palindrome (31641014613).

The spelling of 30320012310 in words is "thirty billion, three hundred twenty million, twelve thousand, three hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 11447 12613 22894 25226 34341 37839 57235 63065 68682 75678 80129 88291 114470 126130 160258 171705 176582 189195 240387 264873 343410 378390 400645 441455 480774 529746 801290 882910 1201935 1324365 2403870 2648730 144381011 288762022 433143033 721905055 866286066 1010667077 1443810110 2021334154 2165715165 3032001231 4331430330 5053335385 6064002462 10106670770 15160006155 30320012310