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50131040 = 2551372287
BaseRepresentation
bin1011111100111…
…1000001100000
310111022220212012
42333033001200
5100313143130
64550252052
71146051431
oct277170140
9114286765
1050131040
1126330213
1214957028
13a502c4b
14692d488
154603995
hex2fcf060

50131040 has 48 divisors (see below), whose sum is σ = 119351232. Its totient is φ = 19897344.

The previous prime is 50131021. The next prime is 50131043. The reversal of 50131040 is 4013105.

50131040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50131043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20777 + ... + 23063.

It is an arithmetic number, because the mean of its divisors is an integer number (2486484).

Almost surely, 250131040 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 50131040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59675616).

50131040 is an abundant number, since it is smaller than the sum of its proper divisors (69220192).

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

50131040 is a wasteful number, since it uses less digits than its factorization.

50131040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439 (or 2431 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 50131040 is about 7080.3276760331. The cubic root of 50131040 is about 368.7247061076.

Adding to 50131040 its reverse (4013105), we get a palindrome (54144145).

The spelling of 50131040 in words is "fifty million, one hundred thirty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 137 160 274 548 685 1096 1370 2192 2287 2740 4384 4574 5480 9148 10960 11435 18296 21920 22870 36592 45740 73184 91480 182960 313319 365920 626638 1253276 1566595 2506552 3133190 5013104 6266380 10026208 12532760 25065520 50131040