Search a number
-
+
2012020141 = 5021400721
BaseRepresentation
bin111011111101100…
…1111110110101101
312012012222012202111
41313323033312231
513110034121031
6531352324021
7100600613635
oct16773176655
95165865674
102012020141
1194280756a
124819a3611
13260ac5581
141513076c5
15bb9891b1
hex77ecfdad

2012020141 has 4 divisors (see below), whose sum is σ = 2012425884. Its totient is φ = 2011614400.

The previous prime is 2012020123. The next prime is 2012020211. The reversal of 2012020141 is 1410202102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1051640041 + 960380100 = 32429^2 + 30990^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012020141 - 217 = 2011889069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012020441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195340 + ... + 205381.

It is an arithmetic number, because the mean of its divisors is an integer number (503106471).

Almost surely, 22012020141 is an apocalyptic number.

It is an amenable number.

2012020141 is a deficient number, since it is larger than the sum of its proper divisors (405743).

2012020141 is an equidigital number, since it uses as much as digits as its factorization.

2012020141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405742.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2012020141 is about 44855.5474941506. The cubic root of 2012020141 is about 1262.4400815402.

Adding to 2012020141 its reverse (1410202102), we get a palindrome (3422222243).

The spelling of 2012020141 in words is "two billion, twelve million, twenty thousand, one hundred forty-one".

Divisors: 1 5021 400721 2012020141