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61938256882 = 2193316021277
BaseRepresentation
bin111001101011110011…
…101100101111110010
312220212120202110100011
4321223303230233302
52003322143210012
644242023445134
74321613332255
oct715363545762
9186776673304
1061938256882
11242a4593157
1210006bb67aa
135ac1197058
142dd807909c
1519279bb1a7
hexe6bcecbf2

61938256882 has 8 divisors (see below), whose sum is σ = 92955454956. Its totient is φ = 30953105232.

The previous prime is 61938256879. The next prime is 61938256903. The reversal of 61938256882 is 28865283916.

It can be written as a sum of positive squares in 2 ways, for example, as 56677801041 + 5260455841 = 238071^2 + 72529^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8006773 + ... + 8014504.

Almost surely, 261938256882 is an apocalyptic number.

61938256882 is a deficient number, since it is larger than the sum of its proper divisors (31017198074).

61938256882 is a wasteful number, since it uses less digits than its factorization.

61938256882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16023212.

The product of its digits is 9953280, while the sum is 58.

The spelling of 61938256882 in words is "sixty-one billion, nine hundred thirty-eight million, two hundred fifty-six thousand, eight hundred eighty-two".

Divisors: 1 2 1933 3866 16021277 32042554 30969128441 61938256882