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655311045213 = 32116619303487
BaseRepresentation
bin10011000100100111001…
…01010000001001011101
32022122110202100021111100
421202103211100021131
541214034111421323
61221013513543313
765226134656416
oct11422345201135
92278422307440
10655311045213
11232a09001510
12a7006414b39
1349a45b23126
1423a080c280d
15120a5b0a943
hex989395025d

655311045213 has 12 divisors (see below), whose sum is σ = 1032611344128. Its totient is φ = 397158209160.

The previous prime is 655311045203. The next prime is 655311045217. The reversal of 655311045213 is 312540113556.

655311045213 is a `hidden beast` number, since 6 + 5 + 531 + 104 + 5 + 2 + 13 = 666.

It is not a de Polignac number, because 655311045213 - 28 = 655311044957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655311045217) 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 11 ways as a sum of consecutive naturals, for example, 3309651645 + ... + 3309651842.

It is an arithmetic number, because the mean of its divisors is an integer number (86050945344).

Almost surely, 2655311045213 is an apocalyptic number.

It is an amenable number.

655311045213 is a deficient number, since it is larger than the sum of its proper divisors (377300298915).

655311045213 is a wasteful number, since it uses less digits than its factorization.

655311045213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6619303504 (or 6619303501 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

Adding to 655311045213 its reverse (312540113556), we get a palindrome (967851158769).

The spelling of 655311045213 in words is "six hundred fifty-five billion, three hundred eleven million, forty-five thousand, two hundred thirteen".

Divisors: 1 3 9 11 33 99 6619303487 19857910461 59573731383 72812338357 218437015071 655311045213