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61928805255 = 354128587017
BaseRepresentation
bin111001101011001111…
…101001001110000111
312220211220222021010220
4321223033221032013
52003312233232010
644241045115423
74321440105432
oct715317511607
9186756867126
1061928805255
112429a217a99
12100039b8b73
135abc237c85
142dd6ad8819
151926c50970
hexe6b3e9387

61928805255 has 8 divisors (see below), whose sum is σ = 99086088432. Its totient is φ = 33028696128.

The previous prime is 61928805229. The next prime is 61928805269. The reversal of 61928805255 is 55250882916.

It is a happy number.

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

It is not a de Polignac number, because 61928805255 - 28 = 61928804999 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 61928805198 and 61928805207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2064293494 + ... + 2064293523.

It is an arithmetic number, because the mean of its divisors is an integer number (12385761054).

Almost surely, 261928805255 is an apocalyptic number.

61928805255 is a deficient number, since it is larger than the sum of its proper divisors (37157283177).

61928805255 is a wasteful number, since it uses less digits than its factorization.

61928805255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128587025.

The product of its (nonzero) digits is 1728000, while the sum is 51.

The spelling of 61928805255 in words is "sixty-one billion, nine hundred twenty-eight million, eight hundred five thousand, two hundred fifty-five".

Divisors: 1 3 5 15 4128587017 12385761051 20642935085 61928805255