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49142889853 = 193118316617
BaseRepresentation
bin101101110001001001…
…001111110101111101
311200211212000110112121
4231301021033311331
51301121034433403
634324222402541
73356543446231
oct556111176575
9150755013477
1049142889853
1119928975562
129635a30451
134832312365
14254297a5c1
1514294db3bd
hexb7124fd7d

49142889853 has 8 divisors (see below), whose sum is σ = 51895696320. Its totient is φ = 46406717280.

The previous prime is 49142889833. The next prime is 49142889869. The reversal of 49142889853 is 35898824194.

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 49142889853 - 25 = 49142889821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49142889791 and 49142889800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49142889833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4152400 + ... + 4164217.

It is an arithmetic number, because the mean of its divisors is an integer number (6486962040).

Almost surely, 249142889853 is an apocalyptic number.

It is an amenable number.

49142889853 is a deficient number, since it is larger than the sum of its proper divisors (2752806467).

49142889853 is a wasteful number, since it uses less digits than its factorization.

49142889853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8316947.

The product of its digits is 19906560, while the sum is 61.

The spelling of 49142889853 in words is "forty-nine billion, one hundred forty-two million, eight hundred eighty-nine thousand, eight hundred fifty-three".

Divisors: 1 19 311 5909 8316617 158015723 2586467887 49142889853