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311042410421 = 3713816087293
BaseRepresentation
bin1001000011010111001…
…00101000011110110101
31002201212002011121010212
410201223210220132311
520044003324113141
6354520234155205
731320630602621
oct4415344503665
91081762147125
10311042410421
1110aa04371726
1250347582b05
132343c784c82
14110a98d2181
158156d292eb
hex486b9287b5

311042410421 has 8 divisors (see below), whose sum is σ = 319680331704. Its totient is φ = 302416666560.

The previous prime is 311042410397. The next prime is 311042410489. The reversal of 311042410421 is 124014240113.

It can be written as a sum of positive squares in 4 ways, for example, as 29388244900 + 281654165521 = 171430^2 + 530711^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-311042410421 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 (311042415421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2992550 + ... + 3094743.

It is an arithmetic number, because the mean of its divisors is an integer number (39960041463).

Almost surely, 2311042410421 is an apocalyptic number.

It is an amenable number.

311042410421 is a deficient number, since it is larger than the sum of its proper divisors (8637921283).

311042410421 is a wasteful number, since it uses less digits than its factorization.

311042410421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6088711.

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

Adding to 311042410421 its reverse (124014240113), we get a palindrome (435056650534).

The spelling of 311042410421 in words is "three hundred eleven billion, forty-two million, four hundred ten thousand, four hundred twenty-one".

Divisors: 1 37 1381 51097 6087293 225229841 8406551633 311042410421