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244472839 = 1373257611
BaseRepresentation
bin11101001001001…
…01110000000111
3122001000111200121
432210211300013
51000041112324
640131522411
76025661542
oct1644456007
9561014617
10244472839
11115aa9076
1269a59407
133b8589b0
142467b859
15166e15e4
hexe925c07

244472839 has 8 divisors (see below), whose sum is σ = 266886032. Its totient is φ = 222575040.

The previous prime is 244472831. The next prime is 244472857. The reversal of 244472839 is 938274442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 244472839 - 23 = 244472831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244472795 and 244472804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244472831) 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 7 ways as a sum of consecutive naturals, for example, 127857 + ... + 129754.

It is an arithmetic number, because the mean of its divisors is an integer number (33360754).

Almost surely, 2244472839 is an apocalyptic number.

244472839 is a deficient number, since it is larger than the sum of its proper divisors (22413193).

244472839 is a wasteful number, since it uses less digits than its factorization.

244472839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257697.

The product of its digits is 387072, while the sum is 43.

The square root of 244472839 is about 15635.6272339807. The cubic root of 244472839 is about 625.2833607912.

The spelling of 244472839 in words is "two hundred forty-four million, four hundred seventy-two thousand, eight hundred thirty-nine".

Divisors: 1 13 73 949 257611 3348943 18805603 244472839