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1013202005 = 5202640401
BaseRepresentation
bin111100011001000…
…011110001010101
32121121111222212012
4330121003301111
54033334431010
6244312234005
734052034464
oct7431036125
92547458765
101013202005
1147aa20732
1224339b905
13131bb031a
14987c69db
155de3d005
hex3c643c55

1013202005 has 4 divisors (see below), whose sum is σ = 1215842412. Its totient is φ = 810561600.

The previous prime is 1013201953. The next prime is 1013202019. The reversal of 1013202005 is 5002023101.

It is a happy number.

1013202005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5002023101 = 17294236653.

It can be written as a sum of positive squares in 2 ways, for example, as 286252561 + 726949444 = 16919^2 + 26962^2 .

It is not a de Polignac number, because 1013202005 - 26 = 1013201941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101320196 + ... + 101320205.

It is an arithmetic number, because the mean of its divisors is an integer number (303960603).

Almost surely, 21013202005 is an apocalyptic number.

It is an amenable number.

1013202005 is a deficient number, since it is larger than the sum of its proper divisors (202640407).

1013202005 is an equidigital number, since it uses as much as digits as its factorization.

1013202005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202640406.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1013202005 is about 31830.8341863672. The cubic root of 1013202005 is about 1004.3814432514.

Adding to 1013202005 its reverse (5002023101), we get a palindrome (6015225106).

The spelling of 1013202005 in words is "one billion, thirteen million, two hundred two thousand, five".

Divisors: 1 5 202640401 1013202005