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50243121 = 325582569
BaseRepresentation
bin1011111110101…
…0011000110001
310111112121121100
42333222120301
5100330234441
64552515013
71150026255
oct277523061
9114477540
1050243121
11263a7445
12149aba69
13a541c76
14695c265
154626cb6
hex2fea631

50243121 has 6 divisors (see below), whose sum is σ = 72573410. Its totient is φ = 33495408.

The previous prime is 50243117. The next prime is 50243147. The reversal of 50243121 is 12134205.

50243121 is a `hidden beast` number, since 502 + 43 + 121 = 666.

It can be written as a sum of positive squares in only one way, i.e., 34751025 + 15492096 = 5895^2 + 3936^2 .

It is not a de Polignac number, because 50243121 - 22 = 50243117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50243094 and 50243103.

It is not an unprimeable number, because it can be changed into a prime (50243101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2791276 + ... + 2791293.

Almost surely, 250243121 is an apocalyptic number.

It is an amenable number.

50243121 is a deficient number, since it is larger than the sum of its proper divisors (22330289).

50243121 is a wasteful number, since it uses less digits than its factorization.

50243121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5582575 (or 5582572 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 50243121 is about 7088.2382155230. The cubic root of 50243121 is about 368.9992949510. Note that the first 3 decimals are identical.

Adding to 50243121 its reverse (12134205), we get a palindrome (62377326).

The spelling of 50243121 in words is "fifty million, two hundred forty-three thousand, one hundred twenty-one".

Divisors: 1 3 9 5582569 16747707 50243121