Search a number
-
+
49911749888 = 28711133161103
BaseRepresentation
bin101110011110111110…
…001101110100000000
311202211102202121020012
4232132332031310000
51304204401444023
634532410004052
73414600605540
oct563676156400
9152742677205
1049911749888
111a192977480
12980b416628
1349256b1420
1425b6b1b320
151471c61978
hexb9ef8dd00

49911749888 has 576 divisors, whose sum is σ = 141708263424. Its totient is φ = 16920576000.

The previous prime is 49911749869. The next prime is 49911749963. The reversal of 49911749888 is 88894711994.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 484580045 + ... + 484580147.

Almost surely, 249911749888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49911749888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70854131712).

49911749888 is an abundant number, since it is smaller than the sum of its proper divisors (91796513536).

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

49911749888 is a wasteful number, since it uses less digits than its factorization.

49911749888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 228 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 68.

The spelling of 49911749888 in words is "forty-nine billion, nine hundred eleven million, seven hundred forty-nine thousand, eight hundred eighty-eight".