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49169192661 = 32139228117231
BaseRepresentation
bin101101110010101101…
…100101011011010101
311200220200111210012200
4231302231211123111
51301144303131121
634331002235113
73360313145631
oct556255453325
9150820453180
1049169192661
1119941800216
1296427b5a99
1348378c1554
142546265dc1
15142b984a26
hexb72b656d5

49169192661 has 24 divisors (see below), whose sum is σ = 71568631680. Its totient is φ = 32527483200.

The previous prime is 49169192603. The next prime is 49169192741. The reversal of 49169192661 is 16629196194.

49169192661 is a `hidden beast` number, since 491 + 6 + 9 + 1 + 92 + 6 + 61 = 666.

It is not a de Polignac number, because 49169192661 - 27 = 49169192533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49169192598 and 49169192607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49169192561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2844916 + ... + 2862146.

It is an arithmetic number, because the mean of its divisors is an integer number (2982026320).

Almost surely, 249169192661 is an apocalyptic number.

It is an amenable number.

49169192661 is a deficient number, since it is larger than the sum of its proper divisors (22399439019).

49169192661 is a wasteful number, since it uses less digits than its factorization.

49169192661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19657 (or 19654 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The spelling of 49169192661 in words is "forty-nine billion, one hundred sixty-nine million, one hundred ninety-two thousand, six hundred sixty-one".

Divisors: 1 3 9 139 417 1251 2281 6843 17231 20529 51693 155079 317059 951177 2395109 2853531 7185327 21555981 39303911 117911733 353735199 5463243629 16389730887 49169192661