Search a number
-
+
50139053 = 104947797
BaseRepresentation
bin1011111101000…
…0111110101101
310111100022211222
42333100332231
5100313422203
64550353125
71146113666
oct277207655
9114308758
1050139053
1126336238
121495b7a5
13a5067a3
14693236d
154606038
hex2fd0fad

50139053 has 4 divisors (see below), whose sum is σ = 50187900. Its totient is φ = 50090208.

The previous prime is 50139041. The next prime is 50139143. The reversal of 50139053 is 35093105.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36024004 + 14115049 = 6002^2 + 3757^2 .

It is a cyclic number.

It is not a de Polignac number, because 50139053 - 218 = 49876909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50139653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22850 + ... + 24947.

It is an arithmetic number, because the mean of its divisors is an integer number (12546975).

Almost surely, 250139053 is an apocalyptic number.

It is an amenable number.

50139053 is a deficient number, since it is larger than the sum of its proper divisors (48847).

50139053 is a wasteful number, since it uses less digits than its factorization.

50139053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48846.

The product of its (nonzero) digits is 2025, while the sum is 26.

The square root of 50139053 is about 7080.8935170641. The cubic root of 50139053 is about 368.7443508471.

The spelling of 50139053 in words is "fifty million, one hundred thirty-nine thousand, fifty-three".

Divisors: 1 1049 47797 50139053