Search a number
-
+
312001141 = 2313565267
BaseRepresentation
bin10010100110001…
…100001001110101
3210202002022002211
4102212030021311
51114333014031
650543133421
710505652214
oct2246141165
9722068084
10312001141
11150131091
12885a4271
134c84047a
142d61907b
151c5cebb1
hex1298c275

312001141 has 4 divisors (see below), whose sum is σ = 325566432. Its totient is φ = 298435852.

The previous prime is 312001133. The next prime is 312001189. The reversal of 312001141 is 141100213.

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.

It is a cyclic number.

It is not a de Polignac number, because 312001141 - 23 = 312001133 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 (312001241) 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, 6782611 + ... + 6782656.

It is an arithmetic number, because the mean of its divisors is an integer number (81391608).

Almost surely, 2312001141 is an apocalyptic number.

It is an amenable number.

312001141 is a deficient number, since it is larger than the sum of its proper divisors (13565291).

312001141 is a wasteful number, since it uses less digits than its factorization.

312001141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13565290.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 312001141 is about 17663.5540308286. The cubic root of 312001141 is about 678.2431153908.

Adding to 312001141 its reverse (141100213), we get a palindrome (453101354).

The spelling of 312001141 in words is "three hundred twelve million, one thousand, one hundred forty-one".

Divisors: 1 23 13565267 312001141