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49888693 = 172934629
BaseRepresentation
bin1011111001001…
…1110110110101
310110212121102101
42332103312311
5100232414233
64541142101
71144022041
oct276236665
9113777371
1049888693
1126185128
121485a931
13a44984a
1468a9021
1545a6c7d
hex2f93db5

49888693 has 4 divisors (see below), whose sum is σ = 52823340. Its totient is φ = 46954048.

The previous prime is 49888649. The next prime is 49888697. The reversal of 49888693 is 39688894.

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 35916049 + 13972644 = 5993^2 + 3738^2 .

It is a cyclic number.

It is not a de Polignac number, because 49888693 - 217 = 49757621 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 (49888697) 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, 1467298 + ... + 1467331.

It is an arithmetic number, because the mean of its divisors is an integer number (13205835).

Almost surely, 249888693 is an apocalyptic number.

It is an amenable number.

49888693 is a deficient number, since it is larger than the sum of its proper divisors (2934647).

49888693 is a wasteful number, since it uses less digits than its factorization.

49888693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2934646.

The product of its digits is 2985984, while the sum is 55.

The square root of 49888693 is about 7063.1928332731. The cubic root of 49888693 is about 368.1295744284.

The spelling of 49888693 in words is "forty-nine million, eight hundred eighty-eight thousand, six hundred ninety-three".

Divisors: 1 17 2934629 49888693