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49820831 = 1914091861
BaseRepresentation
bin1011111000001…
…1010010011111
310110202011022222
42332003102133
5100223231311
64535455555
71143320144
oct276032237
9113664288
1049820831
1126139145
12148275bb
13a4249a8
14688c3cb
154591adb
hex2f8349f

49820831 has 8 divisors (see below), whose sum is σ = 52508400. Its totient is φ = 47139840.

The previous prime is 49820819. The next prime is 49820843. The reversal of 49820831 is 13802894.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (49820819) and next prime (49820843).

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 49820831 - 210 = 49819807 is a prime.

It is a super-2 number, since 2×498208312 = 4964230403061122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49820791 and 49820800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49820801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25841 + ... + 27701.

It is an arithmetic number, because the mean of its divisors is an integer number (6563550).

Almost surely, 249820831 is an apocalyptic number.

49820831 is a deficient number, since it is larger than the sum of its proper divisors (2687569).

49820831 is a wasteful number, since it uses less digits than its factorization.

49820831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3289.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 49820831 is about 7058.3872803920. The cubic root of 49820831 is about 367.9625803752.

The spelling of 49820831 in words is "forty-nine million, eight hundred twenty thousand, eight hundred thirty-one".

Divisors: 1 19 1409 1861 26771 35359 2622149 49820831