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76871681108 = 2267286834631
BaseRepresentation
bin100011110010111101…
…0001100010001010100
321100102022122000020022
41013211322030101110
52224413122243413
655151522524312
75360644336235
oct1074572142124
9240368560208
1076871681108
112a668072872
1212a94206698
137330ca3051
143a134cd08c
151eeda2e608
hex11e5e8c454

76871681108 has 12 divisors (see below), whose sum is σ = 136533284832. Its totient is φ = 37862171160.

The previous prime is 76871681093. The next prime is 76871681137. The reversal of 76871681108 is 80118617867.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 76871681108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143417048 + ... + 143417583.

It is an arithmetic number, because the mean of its divisors is an integer number (11377773736).

Almost surely, 276871681108 is an apocalyptic number.

It is an amenable number.

76871681108 is a deficient number, since it is larger than the sum of its proper divisors (59661603724).

76871681108 is a wasteful number, since it uses less digits than its factorization.

76871681108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286834702 (or 286834700 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 53.

The spelling of 76871681108 in words is "seventy-six billion, eight hundred seventy-one million, six hundred eighty-one thousand, one hundred eight".

Divisors: 1 2 4 67 134 268 286834631 573669262 1147338524 19217920277 38435840554 76871681108