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50638122 = 234312581
BaseRepresentation
bin1100000100101…
…0110100101010
310112021200110000
43001022310222
5100430404442
65005203430
71153263003
oct301126452
9115250400
1050638122
1126647197
1214b60576
13a64c9b2
146a221aa
1546a3d4c
hex304ad2a

50638122 has 20 divisors (see below), whose sum is σ = 113467266. Its totient is φ = 16879320.

The previous prime is 50638109. The next prime is 50638127. The reversal of 50638122 is 22183605.

50638122 is a `hidden beast` number, since 5 + 0 + 638 + 1 + 22 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26224641 + 24413481 = 5121^2 + 4941^2 .

It is a super-3 number, since 3×506381223 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (50638127) 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 9 ways as a sum of consecutive naturals, for example, 156129 + ... + 156452.

Almost surely, 250638122 is an apocalyptic number.

50638122 is an abundant number, since it is smaller than the sum of its proper divisors (62829144).

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

50638122 is a wasteful number, since it uses less digits than its factorization.

50638122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312595 (or 312586 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 50638122 is about 7116.0467957989. The cubic root of 50638122 is about 369.9637704969.

The spelling of 50638122 in words is "fifty million, six hundred thirty-eight thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 312581 625162 937743 1875486 2813229 5626458 8439687 16879374 25319061 50638122