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2061703131 = 3687234377
BaseRepresentation
bin111101011100011…
…0001011111011011
312022200110101000020
41322320301133123
513210244000011
6540325241523
7102043121205
oct17270613733
95280411006
102061703131
11968861094
124965632a3
1326b19c5a7
14157b5b775
15c1000006
hex7ae317db

2061703131 has 4 divisors (see below), whose sum is σ = 2748937512. Its totient is φ = 1374468752.

The previous prime is 2061703121. The next prime is 2061703181. The reversal of 2061703131 is 1313071602.

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

It is a cyclic number.

It is not a de Polignac number, because 2061703131 - 25 = 2061703099 is a prime.

It is a super-2 number, since 2×20617031312 = 8501239600750406322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2061703121) 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, 343617186 + ... + 343617191.

It is an arithmetic number, because the mean of its divisors is an integer number (687234378).

Almost surely, 22061703131 is an apocalyptic number.

2061703131 is a deficient number, since it is larger than the sum of its proper divisors (687234381).

2061703131 is an equidigital number, since it uses as much as digits as its factorization.

2061703131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687234380.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 2061703131 is about 45405.9812249444. The cubic root of 2061703131 is about 1272.7468870448.

Adding to 2061703131 its reverse (1313071602), we get a palindrome (3374774733).

The spelling of 2061703131 in words is "two billion, sixty-one million, seven hundred three thousand, one hundred thirty-one".

Divisors: 1 3 687234377 2061703131