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6541376748 = 223545114729
BaseRepresentation
bin1100001011110010…
…10111110011101100
3121212212202100221220
412011321113303230
5101344043023443
63001032223340
7321046533144
oct60571276354
917785670856
106541376748
112857489195
12132683ab50
138032aa23a
14460a95924
15284425a83
hex185e57cec

6541376748 has 12 divisors (see below), whose sum is σ = 15263212440. Its totient is φ = 2180458912.

The previous prime is 6541376741. The next prime is 6541376749. The reversal of 6541376748 is 8476731456.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 6541376748.

It is not an unprimeable number, because it can be changed into a prime (6541376741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272557353 + ... + 272557376.

It is an arithmetic number, because the mean of its divisors is an integer number (1271934370).

Almost surely, 26541376748 is an apocalyptic number.

It is an amenable number.

6541376748 is an abundant number, since it is smaller than the sum of its proper divisors (8721835692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6541376748 is a wasteful number, since it uses less digits than its factorization.

6541376748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545114736 (or 545114734 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 51.

The square root of 6541376748 is about 80878.7781064971. The cubic root of 6541376748 is about 1870.2071841898.

The spelling of 6541376748 in words is "six billion, five hundred forty-one million, three hundred seventy-six thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 545114729 1090229458 1635344187 2180458916 3270688374 6541376748