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2011706141 = 4378745943
BaseRepresentation
bin111011111101000…
…0011001100011101
312012012101021000212
41313322003030131
513104444044031
6531341502205
7100565135324
oct16772031435
95165337025
102011706141
11942612665
12481871965
13260a15683
141512650bb
15bb92612b
hex77e8331d

2011706141 has 4 divisors (see below), whose sum is σ = 2011795872. Its totient is φ = 2011616412.

The previous prime is 2011706093. The next prime is 2011706143. The reversal of 2011706141 is 1416071102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2011706141 - 26 = 2011706077 is a prime.

It is a super-2 number, since 2×20117061412 = 8093923195474223762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011706143) 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, 20816 + ... + 66758.

It is an arithmetic number, because the mean of its divisors is an integer number (502948968).

Almost surely, 22011706141 is an apocalyptic number.

It is an amenable number.

2011706141 is a deficient number, since it is larger than the sum of its proper divisors (89731).

2011706141 is an equidigital number, since it uses as much as digits as its factorization.

2011706141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89730.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 2011706141 is about 44852.0472330974. The cubic root of 2011706141 is about 1262.3744051253.

Adding to 2011706141 its reverse (1416071102), we get a palindrome (3427777243).

The spelling of 2011706141 in words is "two billion, eleven million, seven hundred six thousand, one hundred forty-one".

Divisors: 1 43787 45943 2011706141