Search a number
-
+
49997480960 = 2105723131463
BaseRepresentation
bin101110100100000101…
…010000010000000000
311210001102002012011002
4232210011100100000
51304343323342320
634545111311132
73416661401420
oct564405202000
9153042065132
1049997480960
111a2273024a9
12983407b4a8
13493a39a27b
1425c4276480
151479548675
hexba4150400

49997480960 has 352 divisors, whose sum is σ = 144431603712. Its totient is φ = 16236380160.

The previous prime is 49997480909. The next prime is 49997480963. The reversal of 49997480960 is 6908479994.

It is not an unprimeable number, because it can be changed into a prime (49997480963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107985689 + ... + 107986151.

It is an arithmetic number, because the mean of its divisors is an integer number (410317056).

Almost surely, 249997480960 is an apocalyptic number.

49997480960 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 49997480960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72215801856).

49997480960 is an abundant number, since it is smaller than the sum of its proper divisors (94434122752).

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

49997480960 is a wasteful number, since it uses less digits than its factorization.

49997480960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 65.

The spelling of 49997480960 in words is "forty-nine billion, nine hundred ninety-seven million, four hundred eighty thousand, nine hundred sixty".