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50431420 = 22513316257
BaseRepresentation
bin1100000001100…
…0010110111100
310111220011220101
43000120112330
5100402301140
65000530444
71151442244
oct300302674
9114804811
1050431420
1126515966
1214a80a24
13a5a98a0
1469aab24
15466299a
hex30185bc

50431420 has 48 divisors (see below), whose sum is σ = 117750528. Its totient is φ = 18017280.

The previous prime is 50431411. The next prime is 50431427. The reversal of 50431420 is 2413405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50431427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4932 + ... + 11188.

It is an arithmetic number, because the mean of its divisors is an integer number (2453136).

Almost surely, 250431420 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 50431420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58875264).

50431420 is an abundant number, since it is smaller than the sum of its proper divisors (67319108).

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

50431420 is a wasteful number, since it uses less digits than its factorization.

50431420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6310 (or 6308 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 50431420 is about 7101.5082904972. The cubic root of 50431420 is about 369.4596934847.

Adding to 50431420 its reverse (2413405), we get a palindrome (52844825).

The spelling of 50431420 in words is "fifty million, four hundred thirty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 31 52 62 65 124 130 155 260 310 403 620 806 1612 2015 4030 6257 8060 12514 25028 31285 62570 81341 125140 162682 193967 325364 387934 406705 775868 813410 969835 1626820 1939670 2521571 3879340 5043142 10086284 12607855 25215710 50431420