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43090680461 = 89673719413
BaseRepresentation
bin101000001000011001…
…111001101010001101
311010020001201101001012
4220020121321222031
51201222203233321
631443502455005
73053553512003
oct501031715215
9133201641035
1043090680461
1117302625014
128426b94465
1340a949667a
14212ac5aa73
1511c2ede05b
hexa08679a8d

43090680461 has 8 divisors (see below), whose sum is σ = 43639653240. Its totient is φ = 42543148032.

The previous prime is 43090680433. The next prime is 43090680497. The reversal of 43090680461 is 16408609034.

It can be written as a sum of positive squares in 4 ways, for example, as 2143134436 + 40947546025 = 46294^2 + 202355^2 .

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-43090680461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43090680761) 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, 299810 + ... + 419603.

It is an arithmetic number, because the mean of its divisors is an integer number (5454956655).

Almost surely, 243090680461 is an apocalyptic number.

It is an amenable number.

43090680461 is a deficient number, since it is larger than the sum of its proper divisors (548972779).

43090680461 is an equidigital number, since it uses as much as digits as its factorization.

43090680461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720175.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 43090680461 in words is "forty-three billion, ninety million, six hundred eighty thousand, four hundred sixty-one".

Divisors: 1 89 673 59897 719413 64027757 484164949 43090680461