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49428219 = 323716351
BaseRepresentation
bin1011110010001…
…1011011111011
310110000012202210
42330203123323
5100123200334
64523230203
71140063411
oct274433373
9113005683
1049428219
11259a0175
1214678363
13a318089
1467c92b1
1545155e9
hex2f236fb

49428219 has 8 divisors (see below), whose sum is σ = 68769792. Its totient is φ = 31519400.

The previous prime is 49428187. The next prime is 49428233. The reversal of 49428219 is 91282494.

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 49428219 - 25 = 49428187 is a prime.

It is a super-2 number, since 2×494282192 = 4886297667023922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49428319) 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, 358107 + ... + 358244.

It is an arithmetic number, because the mean of its divisors is an integer number (8596224).

Almost surely, 249428219 is an apocalyptic number.

49428219 is a deficient number, since it is larger than the sum of its proper divisors (19341573).

49428219 is a wasteful number, since it uses less digits than its factorization.

49428219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716377.

The product of its digits is 41472, while the sum is 39.

The square root of 49428219 is about 7030.5205354938. The cubic root of 49428219 is about 366.9934564141.

The spelling of 49428219 in words is "forty-nine million, four hundred twenty-eight thousand, two hundred nineteen".

Divisors: 1 3 23 69 716351 2149053 16476073 49428219