Search a number
-
+
12030310320 = 243577160899
BaseRepresentation
bin10110011010000111…
…11111011110110000
31011001102011002021220
423031003333132300
5144114224412240
65305431145040
7604056644010
oct131503773660
934042132256
1012030310320
115113884226
1223b8b15180
131199517b22
14821a6bc40
154a625b5d0
hex2cd0ff7b0

12030310320 has 80 divisors (see below), whose sum is σ = 42621676800. Its totient is φ = 2749784832.

The previous prime is 12030310297. The next prime is 12030310363. The reversal of 12030310320 is 2301303021.

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

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 12030310320.

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, 3578770 + ... + 3582129.

It is an arithmetic number, because the mean of its divisors is an integer number (532770960).

Almost surely, 212030310320 is an apocalyptic number.

12030310320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12030310320 is an abundant number, since it is smaller than the sum of its proper divisors (30591366480).

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

12030310320 is a wasteful number, since it uses less digits than its factorization.

12030310320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7160922 (or 7160916 counting only the distinct ones).

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

Adding to 12030310320 its reverse (2301303021), we get a palindrome (14331613341).

The spelling of 12030310320 in words is "twelve billion, thirty million, three hundred ten thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 60 70 80 84 105 112 120 140 168 210 240 280 336 420 560 840 1680 7160899 14321798 21482697 28643596 35804495 42965394 50126293 57287192 71608990 85930788 100252586 107413485 114574384 143217980 150378879 171861576 200505172 214826970 250631465 286435960 300757758 343723152 401010344 429653940 501262930 572871920 601515516 751894395 802020688 859307880 1002525860 1203031032 1503788790 1718615760 2005051720 2406062064 3007577580 4010103440 6015155160 12030310320