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2011013030220 = 2235231457255819
BaseRepresentation
bin11101010000111001101…
…101111010000101001100
321010020202221210202022020
4131100321231322011030
5230422023313431340
64135502512250140
7265201530500625
oct35207155720514
97106687722266
102011013030220
11705958479457
122858b8240950
1311783a0a18bc
146d495392a4c
153749ec929d0
hex1d439b7a14c

2011013030220 has 48 divisors (see below), whose sum is σ = 5875655466240. Its totient is φ = 512954047936.

The previous prime is 2011013030219. The next prime is 2011013030233. The reversal of 2011013030220 is 220303101102.

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 2011013030220.

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, 728626530 + ... + 728629289.

It is an arithmetic number, because the mean of its divisors is an integer number (122409488880).

Almost surely, 22011013030220 is an apocalyptic number.

2011013030220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011013030220 is an abundant number, since it is smaller than the sum of its proper divisors (3864642436020).

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

2011013030220 is a wasteful number, since it uses less digits than its factorization.

2011013030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457255854 (or 1457255852 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 2011013030220 its reverse (220303101102), we get a palindrome (2231316131322).

The spelling of 2011013030220 in words is "two trillion, eleven billion, thirteen million, thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 115 138 230 276 345 460 690 1380 1457255819 2914511638 4371767457 5829023276 7286279095 8743534914 14572558190 17487069828 21858837285 29145116380 33516883837 43717674570 67033767674 87435349140 100550651511 134067535348 167584419185 201101303022 335168838370 402202606044 502753257555 670337676740 1005506515110 2011013030220