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1880170013 = 6728062239
BaseRepresentation
bin111000000010001…
…0001111000011101
311212000212112101102
41300010101320131
512322310420023
6510322322445
764410116141
oct16004217035
94760775342
101880170013
11885341617
124457b9425
1323c6ac947
1413b9c5221
15b00e2628
hex70111e1d

1880170013 has 4 divisors (see below), whose sum is σ = 1908232320. Its totient is φ = 1852107708.

The previous prime is 1880170003. The next prime is 1880170027. The reversal of 1880170013 is 3100710881.

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 an emirpimes, since its reverse is a distinct semiprime: 3100710881 = 6734607297.

It is a cyclic number.

It is not a de Polignac number, because 1880170013 - 220 = 1879121437 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 (1880170003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14031053 + ... + 14031186.

It is an arithmetic number, because the mean of its divisors is an integer number (477058080).

Almost surely, 21880170013 is an apocalyptic number.

It is an amenable number.

1880170013 is a deficient number, since it is larger than the sum of its proper divisors (28062307).

1880170013 is an equidigital number, since it uses as much as digits as its factorization.

1880170013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28062306.

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 1880170013 is about 43360.9272617641. The cubic root of 1880170013 is about 1234.2383613775.

Adding to 1880170013 its reverse (3100710881), we get a palindrome (4980880894).

The spelling of 1880170013 in words is "one billion, eight hundred eighty million, one hundred seventy thousand, thirteen".

Divisors: 1 67 28062239 1880170013