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49989025793 = 717420075847
BaseRepresentation
bin101110100011100101…
…000000000000000001
311210000211011121211202
4232203211000000001
51304334142311133
634544210150545
73416526464660
oct564345000001
9153024147752
1049989025793
111a222557a63
129831282455
1349386c9905
1425c30b4dd7
1514789282e8
hexba3940001

49989025793 has 8 divisors (see below), whose sum is σ = 60490922112. Its totient is φ = 40327281216.

The previous prime is 49989025753. The next prime is 49989025811. The reversal of 49989025793 is 39752098994.

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 49989025793 - 210 = 49989024769 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49989025753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210037805 + ... + 210038042.

It is an arithmetic number, because the mean of its divisors is an integer number (7561365264).

It is a Proth number, since it is equal to 190693 ⋅ 218 + 1 and 190693 < 218.

Almost surely, 249989025793 is an apocalyptic number.

It is an amenable number.

49989025793 is a deficient number, since it is larger than the sum of its proper divisors (10501896319).

49989025793 is a wasteful number, since it uses less digits than its factorization.

49989025793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420075871.

The product of its (nonzero) digits is 44089920, while the sum is 65.

The spelling of 49989025793 in words is "forty-nine billion, nine hundred eighty-nine million, twenty-five thousand, seven hundred ninety-three".

Divisors: 1 7 17 119 420075847 2940530929 7141289399 49989025793