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50168889 = 347872
BaseRepresentation
bin1011111101100…
…0010000111001
310111101211210000
42333120100321
5100320401024
64551143213
71146266661
oct277302071
9114354700
1050168889
11263566a1
1214974b09
13a517244
14693d1a1
15460ecc9
hex2fd8439

50168889 has 15 divisors (see below), whose sum is σ = 75038997. Its totient is φ = 33403428.

The previous prime is 50168857. The next prime is 50168893. The reversal of 50168889 is 98886105.

The square root of 50168889 is 7083.

It is a perfect power (a square), and thus also a powerful number.

50168889 is a `hidden beast` number, since 501 + 68 + 8 + 89 = 666.

It is not a de Polignac number, because 50168889 - 25 = 50168857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50168809) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 63354 + ... + 64140.

Almost surely, 250168889 is an apocalyptic number.

50168889 is the 7083-rd square number.

50168889 is the 3542-nd centered octagonal number.

It is an amenable number.

50168889 is a deficient number, since it is larger than the sum of its proper divisors (24870108).

50168889 is an frugal number, since it uses more digits than its factorization.

50168889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The cubic root of 50168889 is about 368.8174786403.

The spelling of 50168889 in words is "fifty million, one hundred sixty-eight thousand, eight hundred eighty-nine".

Divisors: 1 3 9 27 81 787 2361 7083 21249 63747 619369 1858107 5574321 16722963 50168889