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50143073 = 112344651
BaseRepresentation
bin1011111101000…
…1111101100001
310111100112100212
42333101331201
5100314034243
64550423505
71146131501
oct277217541
9114315325
1050143073
1126339262
1214961b95
13a508576
146933a01
154607318
hex2fd1f61

50143073 has 4 divisors (see below), whose sum is σ = 50188848. Its totient is φ = 50097300.

The previous prime is 50143063. The next prime is 50143099. The reversal of 50143073 is 37034105.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37034105 = 57406821.

It is a cyclic number.

It is not a de Polignac number, because 50143073 - 24 = 50143057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50143003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21203 + ... + 23448.

It is an arithmetic number, because the mean of its divisors is an integer number (12547212).

Almost surely, 250143073 is an apocalyptic number.

It is an amenable number.

50143073 is a deficient number, since it is larger than the sum of its proper divisors (45775).

50143073 is a wasteful number, since it uses less digits than its factorization.

50143073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45774.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 50143073 is about 7081.1773738553. The cubic root of 50143073 is about 368.7542055251.

Adding to 50143073 its reverse (37034105), we get a palindrome (87177178).

The spelling of 50143073 in words is "fifty million, one hundred forty-three thousand, seventy-three".

Divisors: 1 1123 44651 50143073