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49786017693 = 3137121133863
BaseRepresentation
bin101110010111011110…
…100101011110011101
311202111200011202002020
4232113132211132131
51303430210031233
634512115050353
73411513111426
oct562736453635
9152450152066
1049786017693
111a1289aaa75
1297952a09b9
13490562b389
1425a414c64d
151465bc79b3
hexb977a579d

49786017693 has 8 divisors (see below), whose sum is σ = 66865892928. Its totient is φ = 32948410464.

The previous prime is 49786017647. The next prime is 49786017727. The reversal of 49786017693 is 39671068794.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49786017693 - 26 = 49786017629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49786017643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60566521 + ... + 60567342.

It is an arithmetic number, because the mean of its divisors is an integer number (8358236616).

Almost surely, 249786017693 is an apocalyptic number.

It is an amenable number.

49786017693 is a deficient number, since it is larger than the sum of its proper divisors (17079875235).

49786017693 is a wasteful number, since it uses less digits than its factorization.

49786017693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121134003.

The product of its (nonzero) digits is 13716864, while the sum is 60.

The spelling of 49786017693 in words is "forty-nine billion, seven hundred eighty-six million, seventeen thousand, six hundred ninety-three".

Divisors: 1 3 137 411 121133863 363401589 16595339231 49786017693