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17868681076 = 225801770069
BaseRepresentation
bin10000101001000011…
…100110111101110100
31201010022002001022211
4100221003212331310
5243043340243301
612113031503204
71201542166051
oct205103467564
951108061284
1017868681076
11763a44a624
123568227b04
1318b9c7268c
14c17206028
156e8ab9051
hex4290e6f74

17868681076 has 12 divisors (see below), whose sum is σ = 31275622980. Its totient is φ = 8932788800.

The previous prime is 17868681037. The next prime is 17868681101. The reversal of 17868681076 is 67018686871.

It can be written as a sum of positive squares in 2 ways, for example, as 11255088100 + 6613592976 = 106090^2 + 81324^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 17868681076.

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, 361831 + ... + 408238.

It is an arithmetic number, because the mean of its divisors is an integer number (2606301915).

Almost surely, 217868681076 is an apocalyptic number.

It is an amenable number.

17868681076 is a deficient number, since it is larger than the sum of its proper divisors (13406941904).

17868681076 is a wasteful number, since it uses less digits than its factorization.

17868681076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775874 (or 775872 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 58.

The spelling of 17868681076 in words is "seventeen billion, eight hundred sixty-eight million, six hundred eighty-one thousand, seventy-six".

Divisors: 1 2 4 5801 11602 23204 770069 1540138 3080276 4467170269 8934340538 17868681076