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6426244237 = 76431427737
BaseRepresentation
bin1011111110000100…
…01011010010001101
3121120212010000211211
411333002023102031
5101130104303422
62541400414421
7315151113640
oct57702132215
917525100754
106426244237
1127a84a1456
1212b4177411
137b54989aa
1444d685a57
15279282577
hex17f08b48d

6426244237 has 8 divisors (see below), whose sum is σ = 7355706176. Its totient is φ = 5499639072.

The previous prime is 6426244219. The next prime is 6426244243. The reversal of 6426244237 is 7324426246.

It is a happy number.

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 6426244237 - 27 = 6426244109 is a prime.

It is a super-2 number, since 2×64262442372 = 82593229987151424338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6426244237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6426244217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 709368 + ... + 718369.

It is an arithmetic number, because the mean of its divisors is an integer number (919463272).

Almost surely, 26426244237 is an apocalyptic number.

It is an amenable number.

6426244237 is a deficient number, since it is larger than the sum of its proper divisors (929461939).

6426244237 is a wasteful number, since it uses less digits than its factorization.

6426244237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428387.

The product of its digits is 387072, while the sum is 40.

The square root of 6426244237 is about 80163.8586708499. The cubic root of 6426244237 is about 1859.1698840363.

The spelling of 6426244237 in words is "six billion, four hundred twenty-six million, two hundred forty-four thousand, two hundred thirty-seven".

Divisors: 1 7 643 4501 1427737 9994159 918034891 6426244237