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49785400487 = 532148743717
BaseRepresentation
bin101110010111011100…
…001110110010100111
311202111122000101102202
4232113130032302213
51303430030303422
634512053525115
73411504631124
oct562734166247
9152448011382
1049785400487
111a128619289
12979504379b
134905473474
1425a402b74b
151465b04b92
hexb9770eca7

49785400487 has 8 divisors (see below), whose sum is σ = 50728268736. Its totient is φ = 48842662752.

The previous prime is 49785400397. The next prime is 49785400517. The reversal of 49785400487 is 78400458794.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-49785400487 is a prime.

It is a super-2 number, since 2×497854004872 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49785408487) 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, 1116953 + ... + 1160669.

It is an arithmetic number, because the mean of its divisors is an integer number (6341033592).

Almost surely, 249785400487 is an apocalyptic number.

49785400487 is a deficient number, since it is larger than the sum of its proper divisors (942868249).

49785400487 is a wasteful number, since it uses less digits than its factorization.

49785400487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65257.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 49785400487 in words is "forty-nine billion, seven hundred eighty-five million, four hundred thousand, four hundred eighty-seven".

Divisors: 1 53 21487 43717 1138811 2317001 939347179 49785400487