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49782231 = 325531359
BaseRepresentation
bin1011110111100…
…1110111010111
310110200012101100
42331321313113
5100221012411
64535001143
71143066462
oct275716727
9113605340
1049782231
1126112144
12148091b3
13a410255
14687c2d9
154585456
hex2f79dd7

49782231 has 6 divisors (see below), whose sum is σ = 71907680. Its totient is φ = 33188148.

The previous prime is 49782221. The next prime is 49782287. The reversal of 49782231 is 13228794.

It is not a de Polignac number, because 49782231 - 214 = 49765847 is a prime.

It is a super-2 number, since 2×497822312 = 4956541046674722, 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 (49782221) 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, 2765671 + ... + 2765688.

Almost surely, 249782231 is an apocalyptic number.

49782231 is a deficient number, since it is larger than the sum of its proper divisors (22125449).

49782231 is a wasteful number, since it uses less digits than its factorization.

49782231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5531365 (or 5531362 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 49782231 is about 7055.6524149082. The cubic root of 49782231 is about 367.8675262580.

It can be divided in two parts, 497 and 82231, that added together give a palindrome (82728).

The spelling of 49782231 in words is "forty-nine million, seven hundred eighty-two thousand, two hundred thirty-one".

Divisors: 1 3 9 5531359 16594077 49782231