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49680439439 = 1013853127663
BaseRepresentation
bin101110010001001011…
…110101100010001111
311202020022111210221112
4232101023311202033
51303221143030224
634453424122235
73406061524211
oct562113654217
9152208453845
1049680439439
111a084349514
129765a6637b
1348b97b3837
1425941085b1
15145b7c030e
hexb912f588f

49680439439 has 8 divisors (see below), whose sum is σ = 50185739712. Its totient is φ = 49175402400.

The previous prime is 49680439409. The next prime is 49680439489. The reversal of 49680439439 is 93493408694.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 49680439439 - 216 = 49680373903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49680439409) 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, 325322 + ... + 452984.

It is an arithmetic number, because the mean of its divisors is an integer number (6273217464).

Almost surely, 249680439439 is an apocalyptic number.

49680439439 is a deficient number, since it is larger than the sum of its proper divisors (505300273).

49680439439 is a wasteful number, since it uses less digits than its factorization.

49680439439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131617.

The product of its (nonzero) digits is 20155392, while the sum is 59.

The spelling of 49680439439 in words is "forty-nine billion, six hundred eighty million, four hundred thirty-nine thousand, four hundred thirty-nine".

Divisors: 1 101 3853 127663 389153 12893963 491885539 49680439439