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2012103020 = 225234374137
BaseRepresentation
bin111011111101110…
…0100000101101100
312012020010102110002
41313323210011230
513110044244040
6531354203432
7100601410364
oct16773440554
95166112402
102012103020
11942863864
12481a23578
13260b24205
141513299a4
15bb9a3a15
hex77ee416c

2012103020 has 24 divisors (see below), whose sum is σ = 4409131104. Its totient is φ = 769847936.

The previous prime is 2012103001. The next prime is 2012103047. The reversal of 2012103020 is 203012102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2012102992 and 2012103010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2186609 + ... + 2187528.

It is an arithmetic number, because the mean of its divisors is an integer number (183713796).

Almost surely, 22012103020 is an apocalyptic number.

2012103020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012103020 is an abundant number, since it is smaller than the sum of its proper divisors (2397028084).

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

2012103020 is a wasteful number, since it uses less digits than its factorization.

2012103020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374169 (or 4374167 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2012103020 is about 44856.4713280035. The cubic root of 2012103020 is about 1262.4574154182.

Adding to 2012103020 its reverse (203012102), we get a palindrome (2215115122).

The spelling of 2012103020 in words is "two billion, twelve million, one hundred three thousand, twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 4374137 8748274 17496548 21870685 43741370 87482740 100605151 201210302 402420604 503025755 1006051510 2012103020