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68324325690 = 2352277477523
BaseRepresentation
bin111111101000011100…
…100111100100111010
320112100122021100212010
4333220130213210322
52104412011410230
651215431230350
74636066120545
oct775034474472
9215318240763
1068324325690
1126a81334175
12112a98183b6
13659b2373aa
14344226385c
151b9d4649b0
hexfe872793a

68324325690 has 16 divisors (see below), whose sum is σ = 163978381728. Its totient is φ = 18219820176.

The previous prime is 68324325673. The next prime is 68324325697. The reversal of 68324325690 is 9652342386.

It is a super-2 number, since 2×683243256902 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68324325697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1138738732 + ... + 1138738791.

It is an arithmetic number, because the mean of its divisors is an integer number (10248648858).

Almost surely, 268324325690 is an apocalyptic number.

68324325690 is an abundant number, since it is smaller than the sum of its proper divisors (95654056038).

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

68324325690 is a wasteful number, since it uses less digits than its factorization.

68324325690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277477533.

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 68324325690 in words is "sixty-eight billion, three hundred twenty-four million, three hundred twenty-five thousand, six hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 2277477523 4554955046 6832432569 11387387615 13664865138 22774775230 34162162845 68324325690