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30313203020 = 22510945730427
BaseRepresentation
bin11100001110110011…
…101100010101001100
32220020120122021010222
4130032303230111030
5444040134444040
621531541050512
72122121655122
oct341663542514
986216567128
1030313203020
1111946016101
125a5b9b6a38
132b21236629
141677c97912
15bc6394bb5
hex70ecec54c

30313203020 has 48 divisors (see below), whose sum is σ = 64384430880. Its totient is φ = 11987357184.

The previous prime is 30313202999. The next prime is 30313203121. The reversal of 30313203020 is 2030231303.

It is a self number, because there is not a number n which added to its sum of digits gives 30313203020.

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, 981047 + ... + 1011473.

It is an arithmetic number, because the mean of its divisors is an integer number (1341342310).

Almost surely, 230313203020 is an apocalyptic number.

It is an amenable number.

30313203020 is an abundant number, since it is smaller than the sum of its proper divisors (34071227860).

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

30313203020 is a wasteful number, since it uses less digits than its factorization.

30313203020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31002 (or 31000 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 30313203020 its reverse (2030231303), we get a palindrome (32343434323).

The spelling of 30313203020 in words is "thirty billion, three hundred thirteen million, two hundred three thousand, twenty".

Divisors: 1 2 4 5 10 20 109 218 436 457 545 914 1090 1828 2180 2285 4570 9140 30427 49813 60854 99626 121708 152135 199252 249065 304270 498130 608540 996260 3316543 6633086 13266172 13905139 16582715 27810278 33165430 55620556 66330860 69525695 139051390 278102780 1515660151 3031320302 6062640604 7578300755 15156601510 30313203020