Search a number
-
+
49948961 = 401124561
BaseRepresentation
bin1011111010001…
…0100100100001
310110222200002112
42332202210201
5100241331321
64542325105
71144362536
oct276424441
9113880075
1049948961
1126216437
1214889795
13a46b0ca
1468c2d8d
1545b9a5b
hex2fa2921

49948961 has 4 divisors (see below), whose sum is σ = 50073924. Its totient is φ = 49824000.

The previous prime is 49948879. The next prime is 49948963. The reversal of 49948961 is 16984994.

It is a happy number.

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 23580736 + 26368225 = 4856^2 + 5135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-49948961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49948963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61880 + ... + 62681.

It is an arithmetic number, because the mean of its divisors is an integer number (12518481).

Almost surely, 249948961 is an apocalyptic number.

It is an amenable number.

49948961 is a deficient number, since it is larger than the sum of its proper divisors (124963).

49948961 is a wasteful number, since it uses less digits than its factorization.

49948961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124962.

The product of its digits is 559872, while the sum is 50.

The square root of 49948961 is about 7067.4578880953. The cubic root of 49948961 is about 368.2777543315.

The spelling of 49948961 in words is "forty-nine million, nine hundred forty-eight thousand, nine hundred sixty-one".

Divisors: 1 401 124561 49948961