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214331121431 = 725689376883
BaseRepresentation
bin1100011110011100100…
…0010101111100010111
3202111020002211002021122
43013213020111330113
512002422231341211
6242243511434155
721325216321100
oct3074710257427
9674202732248
10214331121431
118299636a909
123565708595b
131729940439b
14a53354d3a7
1558966b26db
hex31e7215f17

214331121431 has 12 divisors (see below), whose sum is σ = 249331582872. Its totient is φ = 183706771248.

The previous prime is 214331121353. The next prime is 214331121439. The reversal of 214331121431 is 134121133412.

It is not a de Polignac number, because 214331121431 - 210 = 214331120407 is a prime.

It is a super-2 number, since 2×2143311214312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214331121431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214331121439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2749316 + ... + 2826198.

It is an arithmetic number, because the mean of its divisors is an integer number (20777631906).

Almost surely, 2214331121431 is an apocalyptic number.

214331121431 is a deficient number, since it is larger than the sum of its proper divisors (35000461441).

214331121431 is an equidigital number, since it uses as much as digits as its factorization.

214331121431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133790 (or 133783 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

Adding to 214331121431 its reverse (134121133412), we get a palindrome (348452254843).

The spelling of 214331121431 in words is "two hundred fourteen billion, three hundred thirty-one million, one hundred twenty-one thousand, four hundred thirty-one".

Divisors: 1 7 49 56893 76883 398251 538181 2787757 3767267 4374104519 30618731633 214331121431