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50987136 = 273232251
BaseRepresentation
bin1100001010000…
…0000010000000
310112221102012110
43002200002000
5101023042021
65020455320
71156245354
oct302400200
9115842173
1050987136
1126865432
12150aa540
13a742805
146ab3464
154722476
hex30a0080

50987136 has 96 divisors (see below), whose sum is σ = 142143120. Its totient is φ = 16192000.

The previous prime is 50987129. The next prime is 50987137. The reversal of 50987136 is 63178905.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 50987094 and 50987103.

It is not an unprimeable number, because it can be changed into a prime (50987137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203011 + ... + 203261.

Almost surely, 250987136 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 50987136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71071560).

50987136 is an abundant number, since it is smaller than the sum of its proper divisors (91155984).

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

50987136 is a wasteful number, since it uses less digits than its factorization.

50987136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 50987136 is about 7140.5277115911. The cubic root of 50987136 is about 370.8117944089.

The spelling of 50987136 in words is "fifty million, nine hundred eighty-seven thousand, one hundred thirty-six".