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2002105835 = 5400421167
BaseRepresentation
bin111011101010101…
…1011010111101011
312011112022111212222
41313111123113223
513100014341320
6530400024255
7100420422152
oct16725332753
95145274788
102002105835
11938155824
1247a60208b
1325ba33a12
1414dc86599
15bab7b825
hex7755b5eb

2002105835 has 4 divisors (see below), whose sum is σ = 2402527008. Its totient is φ = 1601684664.

The previous prime is 2002105801. The next prime is 2002105837. The reversal of 2002105835 is 5385012002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5385012002 = 22692506001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2002105835 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002105837) 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, 200210579 + ... + 200210588.

It is an arithmetic number, because the mean of its divisors is an integer number (600631752).

Almost surely, 22002105835 is an apocalyptic number.

2002105835 is a deficient number, since it is larger than the sum of its proper divisors (400421173).

2002105835 is an equidigital number, since it uses as much as digits as its factorization.

2002105835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400421172.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2002105835 is about 44744.8973068438. The cubic root of 2002105835 is about 1260.3630924271.

Adding to 2002105835 its reverse (5385012002), we get a palindrome (7387117837).

The spelling of 2002105835 in words is "two billion, two million, one hundred five thousand, eight hundred thirty-five".

Divisors: 1 5 400421167 2002105835