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50300021 = 537113367
BaseRepresentation
bin1011111111100…
…0010001110101
310111122111122202
42333320101311
5100334100041
64554034245
71150354202
oct277702165
9114574582
1050300021
1126436172
1214a18985
13a561b35
146974ca9
154638a9b
hex2ff8475

50300021 has 8 divisors (see below), whose sum is σ = 51974784. Its totient is φ = 48652240.

The previous prime is 50300009. The next prime is 50300027. The reversal of 50300021 is 12000305.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50300021 is a prime.

It is a super-2 number, since 2×503000212 = 5060184225200882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50299975 and 50300011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50300027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2921 + ... + 10446.

It is an arithmetic number, because the mean of its divisors is an integer number (6496848).

Almost surely, 250300021 is an apocalyptic number.

It is an amenable number.

50300021 is a deficient number, since it is larger than the sum of its proper divisors (1674763).

50300021 is a wasteful number, since it uses less digits than its factorization.

50300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13491.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 50300021 is about 7092.2507710881. The cubic root of 50300021 is about 369.1385388148.

Adding to 50300021 its reverse (12000305), we get a palindrome (62300326).

The spelling of 50300021 in words is "fifty million, three hundred thousand, twenty-one".

Divisors: 1 53 71 3763 13367 708451 949057 50300021