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50452020 = 223251272207
BaseRepresentation
bin1100000001110…
…1011000110100
310111221020011100
43000131120310
5100403431040
65001210100
71151556303
oct300353064
9114836140
1050452020
112652a393
1214a90930
13a5b6088
1469b443a
154668b30
hex301d634

50452020 has 72 divisors (see below), whose sum is σ = 154312704. Its totient is φ = 13341888.

The previous prime is 50451977. The next prime is 50452027. The reversal of 50452020 is 2025405.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 50451984 and 50452002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50452027) 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 23 ways as a sum of consecutive naturals, for example, 21757 + ... + 23963.

It is an arithmetic number, because the mean of its divisors is an integer number (2143232).

Almost surely, 250452020 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 50452020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77156352).

50452020 is an abundant number, since it is smaller than the sum of its proper divisors (103860684).

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

50452020 is a wasteful number, since it uses less digits than its factorization.

50452020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349 (or 2344 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 50452020 is about 7102.9585385246. The cubic root of 50452020 is about 369.5099917157.

Adding to 50452020 its reverse (2025405), we get a palindrome (52477425).

The spelling of 50452020 in words is "fifty million, four hundred fifty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 127 180 254 381 508 635 762 1143 1270 1524 1905 2207 2286 2540 3810 4414 4572 5715 6621 7620 8828 11035 11430 13242 19863 22070 22860 26484 33105 39726 44140 66210 79452 99315 132420 198630 280289 397260 560578 840867 1121156 1401445 1681734 2522601 2802890 3363468 4204335 5045202 5605780 8408670 10090404 12613005 16817340 25226010 50452020