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244058513 = 1371781449
BaseRepresentation
bin11101000110000…
…00100110010001
3122000020110100012
432203000212101
5444434333023
640115004305
76022314566
oct1643004621
9560213305
10244058513
11115845856
1269899695
133b74222a
14245b086d
151665d978
hexe8c0991

244058513 has 4 divisors (see below), whose sum is σ = 245840100. Its totient is φ = 242276928.

The previous prime is 244058509. The next prime is 244058537. The reversal of 244058513 is 315850442.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 315850442 = 2157925221.

It can be written as a sum of positive squares in 2 ways, for example, as 204833344 + 39225169 = 14312^2 + 6263^2 .

It is a cyclic number.

It is not a de Polignac number, because 244058513 - 22 = 244058509 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 244058513.

It is not an unprimeable number, because it can be changed into a prime (244058593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890588 + ... + 890861.

It is an arithmetic number, because the mean of its divisors is an integer number (61460025).

Almost surely, 2244058513 is an apocalyptic number.

It is an amenable number.

244058513 is a deficient number, since it is larger than the sum of its proper divisors (1781587).

244058513 is a wasteful number, since it uses less digits than its factorization.

244058513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781586.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 244058513 is about 15622.3721950285. The cubic root of 244058513 is about 624.9299232364.

The spelling of 244058513 in words is "two hundred forty-four million, fifty-eight thousand, five hundred thirteen".

Divisors: 1 137 1781449 244058513