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68224002 = 23711147671
BaseRepresentation
bin1000001000100…
…00010000000010
311202101010201220
410010100100002
5114431132002
610434135510
71455615540
oct404202002
9152333656
1068224002
1135568780
121aa21596
1311199342
1490bcd90
155ec97bc
hex4110402

68224002 has 32 divisors (see below), whose sum is σ = 170118144. Its totient is φ = 17720400.

The previous prime is 68223989. The next prime is 68224021. The reversal of 68224002 is 20042286.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73374 + ... + 74297.

It is an arithmetic number, because the mean of its divisors is an integer number (5316192).

Almost surely, 268224002 is an apocalyptic number.

68224002 is an abundant number, since it is smaller than the sum of its proper divisors (101894142).

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

68224002 is a wasteful number, since it uses less digits than its factorization.

68224002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147694.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 68224002 is about 8259.7822005184. The cubic root of 68224002 is about 408.6132046988.

Adding to 68224002 its reverse (20042286), we get a palindrome (88266288).

The spelling of 68224002 in words is "sixty-eight million, two hundred twenty-four thousand, two".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 154 231 462 147671 295342 443013 886026 1033697 1624381 2067394 3101091 3248762 4873143 6202182 9746286 11370667 22741334 34112001 68224002