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49988993 = 1714711999
BaseRepresentation
bin1011111010110…
…0010110000001
310111001201000012
42332230112001
5100244121433
64543234305
71144620335
oct276542601
9114051005
1049988993
112624351a
12148a8995
13a4833b2
1468d37c5
1545c6848
hex2fac581

49988993 has 8 divisors (see below), whose sum is σ = 52992000. Its totient is φ = 46992960.

The previous prime is 49988977. The next prime is 49989007. The reversal of 49988993 is 39988994.

49988993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49988993 - 24 = 49988977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49988903) 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 7 ways as a sum of consecutive naturals, for example, 24008 + ... + 26006.

It is an arithmetic number, because the mean of its divisors is an integer number (6624000).

Almost surely, 249988993 is an apocalyptic number.

It is an amenable number.

49988993 is a deficient number, since it is larger than the sum of its proper divisors (3003007).

49988993 is a wasteful number, since it uses less digits than its factorization.

49988993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487.

The product of its digits is 5038848, while the sum is 59.

The square root of 49988993 is about 7070.2894565923. The cubic root of 49988993 is about 368.3761144569.

Subtracting from 49988993 its reverse (39988994), we obtain a palindrome (9999999).

The spelling of 49988993 in words is "forty-nine million, nine hundred eighty-eight thousand, nine hundred ninety-three".

Divisors: 1 17 1471 1999 25007 33983 2940529 49988993