Search a number
-
+
312001103 = 4118142043
BaseRepresentation
bin10010100110001…
…100001001001111
3210202002022001102
4102212030021033
51114333013403
650543133315
710505652131
oct2246141117
9722068042
10312001103
11150131057
12885a423b
134c84044b
142d619051
151c5ceb88
hex1298c24f

312001103 has 8 divisors (see below), whose sum is σ = 321384336. Its totient is φ = 302702400.

The previous prime is 312001097. The next prime is 312001127. The reversal of 312001103 is 301100213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312001103 - 222 = 307806799 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 (312001133) 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 7 ways as a sum of consecutive naturals, for example, 13601 + ... + 28442.

It is an arithmetic number, because the mean of its divisors is an integer number (40173042).

Almost surely, 2312001103 is an apocalyptic number.

312001103 is a deficient number, since it is larger than the sum of its proper divisors (9383233).

312001103 is a wasteful number, since it uses less digits than its factorization.

312001103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42265.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 312001103 is about 17663.5529551673. The cubic root of 312001103 is about 678.2430878554.

Adding to 312001103 its reverse (301100213), we get a palindrome (613101316).

The spelling of 312001103 in words is "three hundred twelve million, one thousand, one hundred three".

Divisors: 1 41 181 7421 42043 1723763 7609783 312001103