Search a number
-
+
50472993 = 316824331
BaseRepresentation
bin1100000010001…
…0100000100001
310111222021221010
43000202200201
5100410113433
65001451133
71152004404
oct300424041
9114867833
1050472993
112654411a
1214aa0aa9
13a5c279c
1469bbd3b
15466ee63
hex3022821

50472993 has 4 divisors (see below), whose sum is σ = 67297328. Its totient is φ = 33648660.

The previous prime is 50472979. The next prime is 50472997. The reversal of 50472993 is 39927405.

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.

It is not a de Polignac number, because 50472993 - 210 = 50471969 is a prime.

It is a super-3 number, since 3×504729933 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50472997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8412163 + ... + 8412168.

It is an arithmetic number, because the mean of its divisors is an integer number (16824332).

Almost surely, 250472993 is an apocalyptic number.

It is an amenable number.

50472993 is a deficient number, since it is larger than the sum of its proper divisors (16824335).

50472993 is a wasteful number, since it uses less digits than its factorization.

50472993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16824334.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 50472993 is about 7104.4347417652. The cubic root of 50472993 is about 369.5611866229.

The spelling of 50472993 in words is "fifty million, four hundred seventy-two thousand, nine hundred ninety-three".

Divisors: 1 3 16824331 50472993