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68224029 = 367333791
BaseRepresentation
bin1000001000100…
…00010000011101
311202101010202220
410010100100131
5114431132104
610434135553
71455615606
oct404202035
9152333686
1068224029
11355687a5
121aa215b9
1311199363
1490bcdad
155ec97d9
hex411041d

68224029 has 8 divisors (see below), whose sum is σ = 91103232. Its totient is φ = 45413760.

The previous prime is 68224027. The next prime is 68224033. The reversal of 68224029 is 92042286.

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

It is not a de Polignac number, because 68224029 - 21 = 68224027 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68224021) 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, 14877 + ... + 18914.

It is an arithmetic number, because the mean of its divisors is an integer number (11387904).

Almost surely, 268224029 is an apocalyptic number.

It is an amenable number.

68224029 is a deficient number, since it is larger than the sum of its proper divisors (22879203).

68224029 is a wasteful number, since it uses less digits than its factorization.

68224029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34467.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 68224029 is about 8259.7838349439. The cubic root of 68224029 is about 408.6132586024.

The spelling of 68224029 in words is "sixty-eight million, two hundred twenty-four thousand, twenty-nine".

Divisors: 1 3 673 2019 33791 101373 22741343 68224029