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454040140241 = 1168938843369
BaseRepresentation
bin1101001101101101110…
…01101011100111010001
31121101221211121221010102
412212312321223213101
524414333233441431
6544325543542145
744542352341202
oct6466671534721
91541854557112
10454040140241
11165614905626
1273bb515a955
1333a7b41509c
1417d932d55a9
15bc25ce1dcb
hex69b6e6b9d1

454040140241 has 4 divisors (see below), whose sum is σ = 454078995300. Its totient is φ = 454001285184.

The previous prime is 454040140171. The next prime is 454040140261. The reversal of 454040140241 is 142041040454.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 292010544400 + 162029595841 = 540380^2 + 402529^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-454040140241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (454040140261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19409996 + ... + 19433373.

It is an arithmetic number, because the mean of its divisors is an integer number (113519748825).

Almost surely, 2454040140241 is an apocalyptic number.

It is an amenable number.

454040140241 is a deficient number, since it is larger than the sum of its proper divisors (38855059).

454040140241 is a wasteful number, since it uses less digits than its factorization.

454040140241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38855058.

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 454040140241 its reverse (142041040454), we get a palindrome (596081180695).

The spelling of 454040140241 in words is "four hundred fifty-four billion, forty million, one hundred forty thousand, two hundred forty-one".

Divisors: 1 11689 38843369 454040140241