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50315167661 = 11191498291949
BaseRepresentation
bin101110110111000001…
…001000011110101101
311210212112212100101012
4232313001020132231
51311021140331121
635040420355005
73430566603623
oct566701103655
9153775770335
1050315167661
111a37a6671a0
129902545a65
13498b14b575
142614531513
15149739cc5b
hexbb70487ad

50315167661 has 32 divisors (see below), whose sum is σ = 58266000000. Its totient is φ = 42968828160.

The previous prime is 50315167603. The next prime is 50315167673. The reversal of 50315167661 is 16676151305.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 50315167661 - 210 = 50315166637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50315167261) 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 31 ways as a sum of consecutive naturals, for example, 25814915 + ... + 25816863.

It is an arithmetic number, because the mean of its divisors is an integer number (1820812500).

Almost surely, 250315167661 is an apocalyptic number.

It is an amenable number.

50315167661 is a deficient number, since it is larger than the sum of its proper divisors (7950832339).

50315167661 is a wasteful number, since it uses less digits than its factorization.

50315167661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 50315167661 in words is "fifty billion, three hundred fifteen million, one hundred sixty-seven thousand, six hundred sixty-one".

Divisors: 1 11 19 149 209 829 1639 1949 2831 9119 15751 21439 31141 37031 123521 173261 290401 407341 1358731 1615721 2346899 3194411 5517619 17772931 25815889 30698699 60693809 240742429 337685689 2648166719 4574106151 50315167661