Search a number
-
+
49077493 = 281174653
BaseRepresentation
bin1011101100110…
…1110011110101
310102100101122221
42323031303311
5100030434433
64511522341
71134103033
oct273156365
9112311587
1049077493
1125780713
12145293b1
13a22454a
146737553
15449672d
hex2ecdcf5

49077493 has 4 divisors (see below), whose sum is σ = 49252428. Its totient is φ = 48902560.

The previous prime is 49077473. The next prime is 49077517. The reversal of 49077493 is 39477094.

It is a happy number.

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 10909809 + 38167684 = 3303^2 + 6178^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-49077493 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 (49077403) 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, 87046 + ... + 87607.

It is an arithmetic number, because the mean of its divisors is an integer number (12313107).

Almost surely, 249077493 is an apocalyptic number.

It is an amenable number.

49077493 is a deficient number, since it is larger than the sum of its proper divisors (174935).

49077493 is a wasteful number, since it uses less digits than its factorization.

49077493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174934.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 49077493 is about 7005.5330275433. The cubic root of 49077493 is about 366.1233745537.

The spelling of 49077493 in words is "forty-nine million, seventy-seven thousand, four hundred ninety-three".

Divisors: 1 281 174653 49077493