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2013120213 = 31341230707
BaseRepresentation
bin111011111111101…
…1100011011010101
312012022001002202220
41313333130123111
513110324321323
6531432052553
7100613145066
oct16777343325
95168032686
102013120213
11943399015
12482234159
132610bc1c0
1415151256d
15bbb050e3
hex77fdc6d5

2013120213 has 24 divisors (see below), whose sum is σ = 2962953504. Its totient is φ = 1208588160.

The previous prime is 2013120203. The next prime is 2013120223. The reversal of 2013120213 is 3120213102.

It is an interprime number because it is at equal distance from previous prime (2013120203) and next prime (2013120223).

It is not a de Polignac number, because 2013120213 - 218 = 2012858069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2013120192 and 2013120201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013120203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50206 + ... + 80912.

It is an arithmetic number, because the mean of its divisors is an integer number (123456396).

Almost surely, 22013120213 is an apocalyptic number.

It is an amenable number.

2013120213 is a deficient number, since it is larger than the sum of its proper divisors (949833291).

2013120213 is a wasteful number, since it uses less digits than its factorization.

2013120213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30805 (or 30764 counting only the distinct ones).

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

The square root of 2013120213 is about 44867.8082036553. The cubic root of 2013120213 is about 1262.6701193232.

Adding to 2013120213 its reverse (3120213102), we get a palindrome (5133333315).

The spelling of 2013120213 in words is "two billion, thirteen million, one hundred twenty thousand, two hundred thirteen".

Divisors: 1 3 13 39 41 123 533 1599 1681 5043 21853 30707 65559 92121 399191 1197573 1258987 3776961 16366831 49100493 51618467 154855401 671040071 2013120213