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344202343231 = 1372512425863
BaseRepresentation
bin1010000001001000000…
…11101111001100111111
31012220110001102201102111
411000210003233030333
521114411244440411
6422042510434451
733603440433565
oct5004403571477
91186401381374
10344202343231
11122a80281a7a
1256860802a27
13265c56ca5a6
1412933895a35
158e48089721
hex50240ef33f

344202343231 has 4 divisors (see below), whose sum is σ = 346714769232. Its totient is φ = 341689917232.

The previous prime is 344202343211. The next prime is 344202343249. The reversal of 344202343231 is 132343202443.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132343202443 = 235575617999.

It is a cyclic number.

It is not a de Polignac number, because 344202343231 - 231 = 342054859583 is a prime.

It is a super-2 number, since 2×3442023432312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 344202343193 and 344202343202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344202343211) 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 3 ways as a sum of consecutive naturals, for example, 1256212795 + ... + 1256213068.

It is an arithmetic number, because the mean of its divisors is an integer number (86678692308).

Almost surely, 2344202343231 is an apocalyptic number.

344202343231 is a deficient number, since it is larger than the sum of its proper divisors (2512426001).

344202343231 is a wasteful number, since it uses less digits than its factorization.

344202343231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512426000.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 344202343231 its reverse (132343202443), we get a palindrome (476545545674).

The spelling of 344202343231 in words is "three hundred forty-four billion, two hundred two million, three hundred forty-three thousand, two hundred thirty-one".

Divisors: 1 137 2512425863 344202343231