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311420042141 = 13315913097533
BaseRepresentation
bin1001000100000100001…
…01001011101110011101
31002202211101202021110212
410202002011023232131
520100242012322031
6355021524142205
731333164453005
oct4420205135635
91082741667425
10311420042141
11110088549a5a
1250431b37965
132349ca941b0
1411103b13005
15817a07012b
hex488214bb9d

311420042141 has 16 divisors (see below), whose sum is σ = 352061713920. Its totient is φ = 273476468160.

The previous prime is 311420042111. The next prime is 311420042179. The reversal of 311420042141 is 141240024113.

It is a cyclic number.

It is not a de Polignac number, because 311420042141 - 26 = 311420042077 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 (311420042111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6524990 + ... + 6572543.

It is an arithmetic number, because the mean of its divisors is an integer number (22003857120).

Almost surely, 2311420042141 is an apocalyptic number.

311420042141 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

311420042141 is a deficient number, since it is larger than the sum of its proper divisors (40641671779).

311420042141 is a wasteful number, since it uses less digits than its factorization.

311420042141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13097636.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 311420042141 its reverse (141240024113), we get a palindrome (452660066254).

The spelling of 311420042141 in words is "three hundred eleven billion, four hundred twenty million, forty-two thousand, one hundred forty-one".

Divisors: 1 13 31 59 403 767 1829 23777 13097533 170267929 406023523 772754447 5278305799 10045807811 23955387857 311420042141