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2005103132 = 221493364267
BaseRepresentation
bin111011110000011…
…0111001000011100
312011201221210101222
41313200313020130
513101301300012
6530544152512
7100455044504
oct16740671034
95151853358
102005103132
1193991272a
1247b608738
1325c543076
14150426a04
15bb06e972
hex7783721c

2005103132 has 12 divisors (see below), whose sum is σ = 3532481400. Its totient is φ = 995822736.

The previous prime is 2005103081. The next prime is 2005103137. The reversal of 2005103132 is 2313015002.

It is a self number, because there is not a number n which added to its sum of digits gives 2005103132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005103137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1681538 + ... + 1682729.

It is an arithmetic number, because the mean of its divisors is an integer number (294373450).

Almost surely, 22005103132 is an apocalyptic number.

It is an amenable number.

2005103132 is a deficient number, since it is larger than the sum of its proper divisors (1527378268).

2005103132 is a wasteful number, since it uses less digits than its factorization.

2005103132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3364420 (or 3364418 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 2005103132 is about 44778.3779518642. The cubic root of 2005103132 is about 1260.9917303445.

Adding to 2005103132 its reverse (2313015002), we get a palindrome (4318118134).

The spelling of 2005103132 in words is "two billion, five million, one hundred three thousand, one hundred thirty-two".

Divisors: 1 2 4 149 298 596 3364267 6728534 13457068 501275783 1002551566 2005103132