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49280869 = 115218599
BaseRepresentation
bin1011101111111…
…1011101100101
310102201201122101
42323333131211
5100103441434
64520132101
71135611001
oct273773545
9112651571
1049280869
11258aa4a0
1214607031
13a295ca1
14678b701
1544d6b14
hex2eff765

49280869 has 8 divisors (see below), whose sum is σ = 53870400. Its totient is φ = 44709600.

The previous prime is 49280849. The next prime is 49280873. The reversal of 49280869 is 96808294.

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 49280869 - 211 = 49278821 is a prime.

It is a super-3 number, since 3×492808693 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49280839) 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 7 ways as a sum of consecutive naturals, for example, 1432 + ... + 10030.

It is an arithmetic number, because the mean of its divisors is an integer number (6733800).

Almost surely, 249280869 is an apocalyptic number.

It is an amenable number.

49280869 is a deficient number, since it is larger than the sum of its proper divisors (4589531).

49280869 is a wasteful number, since it uses less digits than its factorization.

49280869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9131.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 49280869 is about 7020.0334044789. The cubic root of 49280869 is about 366.6284131810.

The spelling of 49280869 in words is "forty-nine million, two hundred eighty thousand, eight hundred sixty-nine".

Divisors: 1 11 521 5731 8599 94589 4480079 49280869