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2012013140 = 225100600657
BaseRepresentation
bin111011111101100…
…1110001001010100
312012012221212011012
41313323032021110
513110033410030
6531352231352
7100600554344
oct16773161124
95165855135
102012013140
11942802285
1248199b558
13260ac2327
14151304d24
15bb987095
hex77ece254

2012013140 has 12 divisors (see below), whose sum is σ = 4225227636. Its totient is φ = 804805248.

The previous prime is 2012013137. The next prime is 2012013167. The reversal of 2012013140 is 413102102.

It can be written as a sum of positive squares in 2 ways, for example, as 892575376 + 1119437764 = 29876^2 + 33458^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50300309 + ... + 50300348.

It is an arithmetic number, because the mean of its divisors is an integer number (352102303).

Almost surely, 22012013140 is an apocalyptic number.

2012013140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012013140 is an abundant number, since it is smaller than the sum of its proper divisors (2213214496).

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

2012013140 is a wasteful number, since it uses less digits than its factorization.

2012013140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100600666 (or 100600664 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2012013140 is about 44855.4694546830. The cubic root of 2012013140 is about 1262.4386172816.

Adding to 2012013140 its reverse (413102102), we get a palindrome (2425115242).

The spelling of 2012013140 in words is "two billion, twelve million, thirteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 100600657 201201314 402402628 503003285 1006006570 2012013140