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49517157760 = 2757212712433
BaseRepresentation
bin101110000111011100…
…111101110110000000
311201210221021020120221
4232013130331312000
51302402343022020
634425312312424
73402036616300
oct560734756600
9151727236527
1049517157760
111a000165584
12971b242714
134891a14465
14257a563600
15144c2ba6aa
hexb8773dd80

49517157760 has 192 divisors, whose sum is σ = 138799249920. Its totient is φ = 16842276864.

The previous prime is 49517157749. The next prime is 49517157761. The reversal of 49517157760 is 6775171594.

It is a junction number, because it is equal to n+sod(n) for n = 49517157698 and 49517157707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49517157761) 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 23 ways as a sum of consecutive naturals, for example, 3976504 + ... + 3988936.

It is an arithmetic number, because the mean of its divisors is an integer number (722912760).

Almost surely, 249517157760 is an apocalyptic number.

49517157760 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49517157760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69399624960).

49517157760 is an abundant number, since it is smaller than the sum of its proper divisors (89282092160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49517157760 is a wasteful number, since it uses less digits than its factorization.

49517157760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12593 (or 12574 counting only the distinct ones).

The product of its (nonzero) digits is 1852200, while the sum is 52.

The spelling of 49517157760 in words is "forty-nine billion, five hundred seventeen million, one hundred fifty-seven thousand, seven hundred sixty".