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49788631 = 172172279
BaseRepresentation
bin1011110111101…
…1011011010111
310110200112011101
42331323123113
5100221214011
64535050531
71143124234
oct275733327
9113615141
1049788631
1126116a32
1214810a47
13a413139
14688078b
1545872c1
hex2f7b6d7

49788631 has 6 divisors (see below), whose sum is σ = 52889960. Its totient is φ = 46859616.

The previous prime is 49788617. The next prime is 49788653. The reversal of 49788631 is 13688794.

It is a happy number.

It is not a de Polignac number, because 49788631 - 29 = 49788119 is a prime.

It is a super-2 number, since 2×497886312 = 4957815553708322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49788691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85851 + ... + 86428.

Almost surely, 249788631 is an apocalyptic number.

49788631 is a deficient number, since it is larger than the sum of its proper divisors (3101329).

49788631 is a wasteful number, since it uses less digits than its factorization.

49788631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172313 (or 172296 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The square root of 49788631 is about 7056.1059374134. The cubic root of 49788631 is about 367.8832899233.

The spelling of 49788631 in words is "forty-nine million, seven hundred eighty-eight thousand, six hundred thirty-one".

Divisors: 1 17 289 172279 2928743 49788631