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311143422001 = 1934334770163
BaseRepresentation
bin1001000011100011001…
…01111101100000110001
31002202010010020111222111
410201301211331200301
520044210204001001
6354534243205321
731323265310206
oct4416145754061
91082103214874
10311143422001
1110aa56394175
1250375376841
1323457691039
14110b90a7cad
158160b2d851
hex487197d831

311143422001 has 8 divisors (see below), whose sum is σ = 327614863520. Its totient is φ = 294681527712.

The previous prime is 311143421999. The next prime is 311143422047. The reversal of 311143422001 is 100224341113.

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 311143422001 - 21 = 311143421999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311143422061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2319855 + ... + 2450308.

It is an arithmetic number, because the mean of its divisors is an integer number (40951857940).

Almost surely, 2311143422001 is an apocalyptic number.

It is an amenable number.

311143422001 is a deficient number, since it is larger than the sum of its proper divisors (16471441519).

311143422001 is a wasteful number, since it uses less digits than its factorization.

311143422001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773615.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 311143422001 its reverse (100224341113), we get a palindrome (411367763114).

The spelling of 311143422001 in words is "three hundred eleven billion, one hundred forty-three million, four hundred twenty-two thousand, one".

Divisors: 1 19 3433 65227 4770163 90633097 16375969579 311143422001