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2002103011 = 2387047957
BaseRepresentation
bin111011101010101…
…1010101011100011
312011112022101000101
41313111122223203
513100014244021
6530400003231
7100420411006
oct16725325343
95145271011
102002103011
11938153697
1247a600517
1325ba3264c
1414dc8553d
15bab7aa91
hex7755aae3

2002103011 has 4 divisors (see below), whose sum is σ = 2089150992. Its totient is φ = 1915055032.

The previous prime is 2002103003. The next prime is 2002103029. The reversal of 2002103011 is 1103012002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1103012002 = 2551506001.

It is a cyclic number.

It is not a de Polignac number, because 2002103011 - 23 = 2002103003 is a prime.

It is a super-2 number, since 2×20021030112 = 8016832933310532242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002104011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43523956 + ... + 43524001.

It is an arithmetic number, because the mean of its divisors is an integer number (522287748).

Almost surely, 22002103011 is an apocalyptic number.

2002103011 is a deficient number, since it is larger than the sum of its proper divisors (87047981).

2002103011 is an equidigital number, since it uses as much as digits as its factorization.

2002103011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87047980.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2002103011 is about 44744.8657501618. The cubic root of 2002103011 is about 1260.3624998398.

Adding to 2002103011 its reverse (1103012002), we get a palindrome (3105115013).

The spelling of 2002103011 in words is "two billion, two million, one hundred three thousand, eleven".

Divisors: 1 23 87047957 2002103011