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7212426364 = 22111312609137
BaseRepresentation
bin1101011011110010…
…01110010001111100
3200121122110012222101
412231321032101330
5104232340120424
63151403154444
7343505420053
oct65571162174
920548405871
107212426364
113071254750
121493515a24
138ac321310
144c5c5539a
152c32ca344
hex1ade4e47c

7212426364 has 24 divisors (see below), whose sum is σ = 14828346288. Its totient is φ = 3026192640.

The previous prime is 7212426359. The next prime is 7212426379. The reversal of 7212426364 is 4636242127.

It is a super-2 number, since 2×72124263642 (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 6303997 + ... + 6305140.

It is an arithmetic number, because the mean of its divisors is an integer number (617847762).

Almost surely, 27212426364 is an apocalyptic number.

It is an amenable number.

7212426364 is an abundant number, since it is smaller than the sum of its proper divisors (7615919924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7212426364 is a wasteful number, since it uses less digits than its factorization.

7212426364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12609165 (or 12609163 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The square root of 7212426364 is about 84926.0052280808. The cubic root of 7212426364 is about 1932.0890124549.

The spelling of 7212426364 in words is "seven billion, two hundred twelve million, four hundred twenty-six thousand, three hundred sixty-four".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 12609137 25218274 50436548 138700507 163918781 277401014 327837562 554802028 655675124 1803106591 3606213182 7212426364