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49041721 = 311679473
BaseRepresentation
bin1011101100010…
…1000100111001
310102021120121001
42323011010321
5100023313341
64511045001
71133563531
oct273050471
9112246531
1049041721
1125756853
1214510761
13a211191
1467284c1
15448ad31
hex2ec5139

49041721 has 8 divisors (see below), whose sum is σ = 50932224. Its totient is φ = 47170560.

The previous prime is 49041703. The next prime is 49041737. The reversal of 49041721 is 12714094.

49041721 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 49041721 - 25 = 49041689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49041721.

It is not an unprimeable number, because it can be changed into a prime (49041791) 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, 441 + ... + 9913.

It is an arithmetic number, because the mean of its divisors is an integer number (6366528).

Almost surely, 249041721 is an apocalyptic number.

It is an amenable number.

49041721 is a deficient number, since it is larger than the sum of its proper divisors (1890503).

49041721 is a wasteful number, since it uses less digits than its factorization.

49041721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9671.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 49041721 is about 7002.9794373538. The cubic root of 49041721 is about 366.0343986103.

The spelling of 49041721 in words is "forty-nine million, forty-one thousand, seven hundred twenty-one".

Divisors: 1 31 167 5177 9473 293663 1581991 49041721