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2002043131 = 11217973283
BaseRepresentation
bin111011101010100…
…1100000011111011
312011112012022212121
41313111030003323
513100010340011
6530354422111
7100420041304
oct16725140373
95145168777
102002043131
11938112700
1247a591937
1325ba1130a
1414dc6b7ab
15bab67e71
hex7754c0fb

2002043131 has 12 divisors (see below), whose sum is σ = 2330041896. Its totient is φ = 1712976320.

The previous prime is 2002043111. The next prime is 2002043143. The reversal of 2002043131 is 1313402002.

It is a happy number.

It is not a de Polignac number, because 2002043131 - 227 = 1867825403 is a prime.

It is a super-2 number, since 2×20020431312 = 8016353396768566322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2002043111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 484585 + ... + 488698.

It is an arithmetic number, because the mean of its divisors is an integer number (194170158).

Almost surely, 22002043131 is an apocalyptic number.

2002043131 is a deficient number, since it is larger than the sum of its proper divisors (327998765).

2002043131 is a wasteful number, since it uses less digits than its factorization.

2002043131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973322 (or 973311 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2002043131 is about 44744.1966181090. The cubic root of 2002043131 is about 1260.3499345092.

Adding to 2002043131 its reverse (1313402002), we get a palindrome (3315445133).

The spelling of 2002043131 in words is "two billion, two million, forty-three thousand, one hundred thirty-one".

Divisors: 1 11 17 121 187 2057 973283 10706113 16545811 117767243 182003921 2002043131