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6242801009 = 7213865493
BaseRepresentation
bin1011101000001100…
…11001010101110001
3121010001221011001012
411310012121111301
5100241124113014
62511244520305
7310462635014
oct56406312561
917101834035
106242801009
112713997885
121262850095
1378648a7c3
1443317337b
152680e8c3e
hex174199571

6242801009 has 4 divisors (see below), whose sum is σ = 6243673716. Its totient is φ = 6241928304.

The previous prime is 6242800969. The next prime is 6242801023. The reversal of 6242801009 is 9001082426.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4175098225 + 2067702784 = 64615^2 + 45472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6242801009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6242801039) 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, 425534 + ... + 439959.

It is an arithmetic number, because the mean of its divisors is an integer number (1560918429).

Almost surely, 26242801009 is an apocalyptic number.

It is an amenable number.

6242801009 is a deficient number, since it is larger than the sum of its proper divisors (872707).

6242801009 is an equidigital number, since it uses as much as digits as its factorization.

6242801009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872706.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 6242801009 is about 79011.3979689007. The cubic root of 6242801009 is about 1841.3082426834.

The spelling of 6242801009 in words is "six billion, two hundred forty-two million, eight hundred one thousand, nine".

Divisors: 1 7213 865493 6242801009