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244679961 = 381559987
BaseRepresentation
bin11101001010110…
…00010100011001
3122001102000210210
432211120110121
51000114224321
640140201333
76030513441
oct1645302431
9561360723
10244679961
1111612a749
1269b39249
133b8cc056
14246d3121
1516732b76
hexe958519

244679961 has 4 divisors (see below), whose sum is σ = 326239952. Its totient is φ = 163119972.

The previous prime is 244679951. The next prime is 244679983. The reversal of 244679961 is 169976442.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 244679961 - 211 = 244677913 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 244679961.

It is not an unprimeable number, because it can be changed into a prime (244679951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40779991 + ... + 40779996.

It is an arithmetic number, because the mean of its divisors is an integer number (81559988).

Almost surely, 2244679961 is an apocalyptic number.

It is an amenable number.

244679961 is a deficient number, since it is larger than the sum of its proper divisors (81559991).

244679961 is an equidigital number, since it uses as much as digits as its factorization.

244679961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81559990.

The product of its digits is 653184, while the sum is 48.

The square root of 244679961 is about 15642.2492308491. The cubic root of 244679961 is about 625.4598948984.

The spelling of 244679961 in words is "two hundred forty-four million, six hundred seventy-nine thousand, nine hundred sixty-one".

Divisors: 1 3 81559987 244679961