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6481611055 = 51637952897
BaseRepresentation
bin1100000100101010…
…11000100100101111
3121201201021221211201
412002111120210233
5101233243023210
62551055230331
7316422533143
oct60225304457
917651257751
106481611055
112826778357
12130a8183a7
137c3ab2b1a
14456b79223
1527e06c53a
hex18255892f

6481611055 has 8 divisors (see below), whose sum is σ = 7825651632. Its totient is φ = 5153476608.

The previous prime is 6481611053. The next prime is 6481611077. The reversal of 6481611055 is 5501161846.

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

It is a cyclic number.

It is not a de Polignac number, because 6481611055 - 21 = 6481611053 is a prime.

It is a super-2 number, since 2×64816110552 = 84022563736596426050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6481611053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3975634 + ... + 3977263.

It is an arithmetic number, because the mean of its divisors is an integer number (978206454).

Almost surely, 26481611055 is an apocalyptic number.

6481611055 is a deficient number, since it is larger than the sum of its proper divisors (1344040577).

6481611055 is a wasteful number, since it uses less digits than its factorization.

6481611055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7953065.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 6481611055 is about 80508.4533139223. The cubic root of 6481611055 is about 1864.4939945496.

The spelling of 6481611055 in words is "six billion, four hundred eighty-one million, six hundred eleven thousand, fifty-five".

Divisors: 1 5 163 815 7952897 39764485 1296322211 6481611055