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49897753 = 151133023
BaseRepresentation
bin1011111001011…
…0000100011001
310110220001211221
42332112010121
5100233212003
64541252041
71144060333
oct276260431
9113801757
1049897753
1126190a14
1214864021
13a4509c9
1468ac453
1545a97bd
hex2f96119

49897753 has 4 divisors (see below), whose sum is σ = 49932288. Its totient is φ = 49863220.

The previous prime is 49897747. The next prime is 49897807. The reversal of 49897753 is 35779894.

49897753 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 35779894 = 217889947.

It is a cyclic number.

It is not a de Polignac number, because 49897753 - 213 = 49889561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49897753.

It is not an unprimeable number, because it can be changed into a prime (49897853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15001 + ... + 18022.

It is an arithmetic number, because the mean of its divisors is an integer number (12483072).

Almost surely, 249897753 is an apocalyptic number.

It is an amenable number.

49897753 is a deficient number, since it is larger than the sum of its proper divisors (34535).

49897753 is a wasteful number, since it uses less digits than its factorization.

49897753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34534.

The product of its digits is 1905120, while the sum is 52.

The square root of 49897753 is about 7063.8341571699. The cubic root of 49897753 is about 368.1518577146.

The spelling of 49897753 in words is "forty-nine million, eight hundred ninety-seven thousand, seven hundred fifty-three".

Divisors: 1 1511 33023 49897753