Search a number
-
+
48649951 = 76949993
BaseRepresentation
bin1011100110010…
…1011011011111
310101112200012001
42321211123133
544423244301
64454423131
71130342410
oct271453337
9111480161
1048649951
1125509479
1214361aa7
13a104a6c
146665807
15440ec01
hex2e656df

48649951 has 4 divisors (see below), whose sum is σ = 55599952. Its totient is φ = 41699952.

The previous prime is 48649927. The next prime is 48649957. The reversal of 48649951 is 15994684.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 48649951 - 211 = 48647903 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 (48649957) 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, 3474990 + ... + 3475003.

It is an arithmetic number, because the mean of its divisors is an integer number (13899988).

Almost surely, 248649951 is an apocalyptic number.

48649951 is a deficient number, since it is larger than the sum of its proper divisors (6950001).

48649951 is an equidigital number, since it uses as much as digits as its factorization.

48649951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6950000.

The product of its digits is 311040, while the sum is 46.

The square root of 48649951 is about 6974.9516844205. The cubic root of 48649951 is about 365.0571024691.

The spelling of 48649951 in words is "forty-eight million, six hundred forty-nine thousand, nine hundred fifty-one".

Divisors: 1 7 6949993 48649951