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6122420645 = 511111316739
BaseRepresentation
bin1011011001110110…
…01011100110100101
3120210200102012020012
411230323023212211
5100014314430040
62451304420005
7304501500605
oct55473134645
916720365205
106122420645
112661a46280
12122a477605
1376755c713
14421198c05
1525c76a865
hex16cecb9a5

6122420645 has 8 divisors (see below), whose sum is σ = 8014805280. Its totient is φ = 4452669520.

The previous prime is 6122420641. The next prime is 6122420651. The reversal of 6122420645 is 5460242216.

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

It is not a de Polignac number, because 6122420645 - 22 = 6122420641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6122420641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55658315 + ... + 55658424.

It is an arithmetic number, because the mean of its divisors is an integer number (1001850660).

Almost surely, 26122420645 is an apocalyptic number.

It is an amenable number.

6122420645 is a deficient number, since it is larger than the sum of its proper divisors (1892384635).

6122420645 is a wasteful number, since it uses less digits than its factorization.

6122420645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111316755.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 6122420645 is about 78245.8985826094. The cubic root of 6122420645 is about 1829.3959849782.

The spelling of 6122420645 in words is "six billion, one hundred twenty-two million, four hundred twenty thousand, six hundred forty-five".

Divisors: 1 5 11 55 111316739 556583695 1224484129 6122420645