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212430314431 = 6111399730911
BaseRepresentation
bin1100010111010111010…
…1010101101110111111
3202022022122010002021101
43011311311111232333
511440024130030211
6241331130513531
721230135610526
oct3056565255677
9668278102241
10212430314431
1182100413435
12352065958a7
131705567a40a
14a3d2d154bd
1557d48955c1
hex3175d55bbf

212430314431 has 16 divisors (see below), whose sum is σ = 218049043968. Its totient is φ = 206884339200.

The previous prime is 212430314363. The next prime is 212430314479. The reversal of 212430314431 is 134413034212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212430314431 - 215 = 212430281663 is a prime.

It is a super-2 number, since 2×2124303144312 (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 212430314431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212430314491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6856866 + ... + 6887776.

It is an arithmetic number, because the mean of its divisors is an integer number (13628065248).

Almost surely, 2212430314431 is an apocalyptic number.

212430314431 is a deficient number, since it is larger than the sum of its proper divisors (5618729537).

212430314431 is a wasteful number, since it uses less digits than its factorization.

212430314431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32082.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 212430314431 its reverse (134413034212), we get a palindrome (346843348643).

The spelling of 212430314431 in words is "two hundred twelve billion, four hundred thirty million, three hundred fourteen thousand, four hundred thirty-one".

Divisors: 1 61 113 997 6893 30911 60817 112661 1885571 3492943 6872321 30818267 213069523 1879914287 3482464171 212430314431