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1468941949 = 7731900313
BaseRepresentation
bin101011110001110…
…0100011001111101
310210101001222112101
41113203210121331
511002022120244
6401432305101
751254541406
oct12743443175
93711058471
101468941949
116941a7912
1234bb42191
131a5439827
14dd13a9ad
1588e620d4
hex578e467d

1468941949 has 4 divisors (see below), whose sum is σ = 1470843036. Its totient is φ = 1467040864.

The previous prime is 1468941941. The next prime is 1468941953. The reversal of 1468941949 is 9491498641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9491498641 = 70113539941.

It can be written as a sum of positive squares in 2 ways, for example, as 33062500 + 1435879449 = 5750^2 + 37893^2 .

It is a cyclic number.

It is not a de Polignac number, because 1468941949 - 23 = 1468941941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1468941949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1468941941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 949384 + ... + 950929.

It is an arithmetic number, because the mean of its divisors is an integer number (367710759).

Almost surely, 21468941949 is an apocalyptic number.

It is an amenable number.

1468941949 is a deficient number, since it is larger than the sum of its proper divisors (1901087).

1468941949 is an equidigital number, since it uses as much as digits as its factorization.

1468941949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901086.

The product of its digits is 2239488, while the sum is 55.

The square root of 1468941949 is about 38326.7784845009. The cubic root of 1468941949 is about 1136.7585021197.

The spelling of 1468941949 in words is "one billion, four hundred sixty-eight million, nine hundred forty-one thousand, nine hundred forty-nine".

Divisors: 1 773 1900313 1468941949