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76900223138 = 21960872
BaseRepresentation
bin100011110011110011…
…1000100100010100010
321100111022100002112112
41013213213010202202
52224442424120023
655154422355322
75361442053164
oct1074747044242
9240438302475
1076900223138
112a682197922
1212aa188bb42
137336b8751b
143a171dc934
1520012bb478
hex11e79c48a2

76900223138 has 6 divisors (see below), whose sum is σ = 115350922971. Its totient is φ = 38449915482.

The previous prime is 76900223137. The next prime is 76900223189. The reversal of 76900223138 is 83132200967.

It can be written as a sum of positive squares in only one way, i.e., 38450111569 + 38450111569 = 196087^2 + 196087^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=196087.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76900223095 and 76900223104.

It is not an unprimeable number, because it can be changed into a prime (76900223137) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 294131 + ... + 490217.

Almost surely, 276900223138 is an apocalyptic number.

76900223138 is a deficient number, since it is larger than the sum of its proper divisors (38450699833).

76900223138 is an frugal number, since it uses more digits than its factorization.

76900223138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392176 (or 196089 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 76900223138 in words is "seventy-six billion, nine hundred million, two hundred twenty-three thousand, one hundred thirty-eight".

Divisors: 1 2 196087 392174 38450111569 76900223138