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49871307 = 31131311123
BaseRepresentation
bin1011111000111…
…1100111001011
310110211201120110
42332033213023
5100231340212
64540525403
71143620253
oct276174713
9113751513
1049871307
1126173062
1214850863
13a441965
1468a2963
1545a1a3c
hex2f8f9cb

49871307 has 16 divisors (see below), whose sum is σ = 67655808. Its totient is φ = 32672640.

The previous prime is 49871299. The next prime is 49871347. The reversal of 49871307 is 70317894.

It is not a de Polignac number, because 49871307 - 23 = 49871299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49871347) 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 15 ways as a sum of consecutive naturals, for example, 43848 + ... + 44970.

It is an arithmetic number, because the mean of its divisors is an integer number (4228488).

Almost surely, 249871307 is an apocalyptic number.

49871307 is a deficient number, since it is larger than the sum of its proper divisors (17784501).

49871307 is a wasteful number, since it uses less digits than its factorization.

49871307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 49871307 is about 7061.9619795068. The cubic root of 49871307 is about 368.0868055895.

The spelling of 49871307 in words is "forty-nine million, eight hundred seventy-one thousand, three hundred seven".

Divisors: 1 3 113 131 339 393 1123 3369 14803 44409 126899 147113 380697 441339 16623769 49871307