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54643655743 = 661790110463
BaseRepresentation
bin110010111001000001…
…000000010000111111
312020001012200022202121
4302321001000100333
51343402233440433
641034123103411
73643056260455
oct627101002077
9166035608677
1054643655743
11211a0a12376
12a710071b67
1351cab33811
1429053529d5
15164c3acc2d
hexcb904043f

54643655743 has 8 divisors (see below), whose sum is σ = 54738481536. Its totient is φ = 54548868000.

The previous prime is 54643655723. The next prime is 54643655761. The reversal of 54643655743 is 34755634645.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54643655743 is a prime.

It is a super-2 number, since 2×546436557432 (a number of 22 digits) 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 (54643655723) 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, 5217330 + ... + 5227792.

It is an arithmetic number, because the mean of its divisors is an integer number (6842310192).

Almost surely, 254643655743 is an apocalyptic number.

54643655743 is a deficient number, since it is larger than the sum of its proper divisors (94825793).

54643655743 is a wasteful number, since it uses less digits than its factorization.

54643655743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19025.

The product of its digits is 18144000, while the sum is 52.

The spelling of 54643655743 in words is "fifty-four billion, six hundred forty-three million, six hundred fifty-five thousand, seven hundred forty-three".

Divisors: 1 661 7901 10463 5222561 6916043 82668163 54643655743