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49801091 = 2913113109
BaseRepresentation
bin1011110111111…
…0011110000011
310110201011020212
42331332132003
5100222113331
64535224335
71143205454
oct275763603
9113634225
1049801091
112612532a
12148180ab
13a418a02
14688512b
15458ad2b
hex2f7e783

49801091 has 8 divisors (see below), whose sum is σ = 51915600. Its totient is φ = 47713120.

The previous prime is 49801057. The next prime is 49801121. The reversal of 49801091 is 19010894.

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

It is not a de Polignac number, because 49801091 - 26 = 49801027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49801051) 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 7 ways as a sum of consecutive naturals, for example, 2756 + ... + 10353.

It is an arithmetic number, because the mean of its divisors is an integer number (6489450).

Almost surely, 249801091 is an apocalyptic number.

49801091 is a deficient number, since it is larger than the sum of its proper divisors (2114509).

49801091 is a wasteful number, since it uses less digits than its factorization.

49801091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13269.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 49801091 is about 7056.9888054325. The cubic root of 49801091 is about 367.9139759346.

The spelling of 49801091 in words is "forty-nine million, eight hundred one thousand, ninety-one".

Divisors: 1 29 131 3799 13109 380161 1717279 49801091