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49972049 = 206324223
BaseRepresentation
bin1011111010100…
…0001101010001
310111000211202122
42332220031101
5100243101144
64543024025
71144520051
oct276501521
9114024678
1049972049
1126231816
121489b015
13a47877a
1468cb561
1545c17ee
hex2fa8351

49972049 has 4 divisors (see below), whose sum is σ = 49998336. Its totient is φ = 49945764.

The previous prime is 49972037. The next prime is 49972079. The reversal of 49972049 is 94027994.

49972049 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: 94027994 = 247013997.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-49972049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49972009) 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, 10049 + ... + 14174.

It is an arithmetic number, because the mean of its divisors is an integer number (12499584).

Almost surely, 249972049 is an apocalyptic number.

It is an amenable number.

49972049 is a deficient number, since it is larger than the sum of its proper divisors (26287).

49972049 is a wasteful number, since it uses less digits than its factorization.

49972049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26286.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 49972049 is about 7069.0911014076. The cubic root of 49972049 is about 368.3344888252.

The spelling of 49972049 in words is "forty-nine million, nine hundred seventy-two thousand, forty-nine".

Divisors: 1 2063 24223 49972049